12457894832 has 10 divisors (see below), whose sum is σ = 24137171268. Its totient is φ = 6228947408.

The previous prime is 12457894811. The next prime is 12457894847. The reversal of 12457894832 is 23849875421.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389309198 + ... + 389309229.

Almost surely, 2^12457894832 is an apocalyptic number.

It is an amenable number.

12457894832 is a deficient number, since it is larger than the sum of its proper divisors (11679276436).

12457894832 is an equidigital number, since it uses as much as digits as its factorization.

12457894832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778618435 (or 778618429 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 53.

The spelling of 12457894832 in words is "twelve billion, four hundred fifty-seven million, eight hundred ninety-four thousand, eight hundred thirty-two".