12785477232 has 80 divisors (see below), whose sum is σ = 38151343872. Its totient is φ = 3646479360.

The previous prime is 12785477231. The next prime is 12785477233. The reversal of 12785477232 is 23277458721.

12785477232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12785477231) and next prime (12785477233).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12785477231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703228 + ... + 721179.

Almost surely, 2^12785477232 is an apocalyptic number.

12785477232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12785477232 is an abundant number, since it is smaller than the sum of its proper divisors (25365866640).

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

12785477232 is a wasteful number, since it uses less digits than its factorization.

12785477232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424446 (or 1424440 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 48.

The spelling of 12785477232 in words is "twelve billion, seven hundred eighty-five million, four hundred seventy-seven thousand, two hundred thirty-two".