12457739472 has 20 divisors (see below), whose sum is σ = 32182493760. Its totient is φ = 4152579808.

The previous prime is 12457739471. The next prime is 12457739473. The reversal of 12457739472 is 27493775421.

It is an interprime number because it is at equal distance from previous prime (12457739471) and next prime (12457739473).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12457739471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129768072 + ... + 129768167.

It is an arithmetic number, because the mean of its divisors is an integer number (1609124688).

Almost surely, 2^12457739472 is an apocalyptic number.

12457739472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12457739472 is an abundant number, since it is smaller than the sum of its proper divisors (19724754288).

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

12457739472 is a wasteful number, since it uses less digits than its factorization.

12457739472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259536250 (or 259536244 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 51.

The spelling of 12457739472 in words is "twelve billion, four hundred fifty-seven million, seven hundred thirty-nine thousand, four hundred seventy-two".