12458642280 has 128 divisors (see below), whose sum is σ = 43023052800. Its totient is φ = 2827176192.

The previous prime is 12458642269. The next prime is 12458642291. The reversal of 12458642280 is 8224685421.

It is an interprime number because it is at equal distance from previous prime (12458642269) and next prime (12458642291).

It is a super-2 number, since 2×12458642280² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63409 + ... + 170111.

It is an arithmetic number, because the mean of its divisors is an integer number (336117600).

Almost surely, 2^12458642280 is an apocalyptic number.

12458642280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12458642280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21511526400).

12458642280 is an abundant number, since it is smaller than the sum of its proper divisors (30564410520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12458642280 is a wasteful number, since it uses less digits than its factorization.

12458642280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106863 (or 106859 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The spelling of 12458642280 in words is "twelve billion, four hundred fifty-eight million, six hundred forty-two thousand, two hundred eighty".