158447478784 has 288 divisors, whose sum is σ = 383039616960. Its totient is φ = 65288208384.

The previous prime is 158447478769. The next prime is 158447478797. The reversal of 158447478784 is 487874744851.

It is a super-2 number, since 2×158447478784² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 315004677 + ... + 315005179.

It is an arithmetic number, because the mean of its divisors is an integer number (1329998670).

Almost surely, 2^158447478784 is an apocalyptic number.

158447478784 is a gapful number since it is divisible by the number (14) 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 158447478784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191519808480).

158447478784 is an abundant number, since it is smaller than the sum of its proper divisors (224592138176).

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

158447478784 is an equidigital number, since it uses as much as digits as its factorization.

158447478784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 628 counting only the distinct ones).

The product of its digits is 224788480, while the sum is 67.

The spelling of 158447478784 in words is "one hundred fifty-eight billion, four hundred forty-seven million, four hundred seventy-eight thousand, seven hundred eighty-four".