12357789456 has 20 divisors (see below), whose sum is σ = 31924289552. Its totient is φ = 4119263136.

The previous prime is 12357789403. The next prime is 12357789461. The reversal of 12357789456 is 65498775321.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12357789396 and 12357789405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128726926 + ... + 128727021.

Almost surely, 2^12357789456 is an apocalyptic number.

12357789456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12357789456 is an abundant number, since it is smaller than the sum of its proper divisors (19566500096).

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

12357789456 is a wasteful number, since it uses less digits than its factorization.

12357789456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257453958 (or 257453952 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 57.

The spelling of 12357789456 in words is "twelve billion, three hundred fifty-seven million, seven hundred eighty-nine thousand, four hundred fifty-six".