12957454845 has 32 divisors (see below), whose sum is σ = 23058282240. Its totient is φ = 6903800640.

The previous prime is 12957454843. The next prime is 12957454903. The reversal of 12957454845 is 54845475921.

12957454845 is a `hidden beast` number, since 1 + 2 + 9 + 57 + 4 + 548 + 45 = 666.

It is not a de Polignac number, because 12957454845 - 2¹ = 12957454843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12957454791 and 12957454800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12957454843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90832 + ... + 184838.

It is an arithmetic number, because the mean of its divisors is an integer number (720571320).

Almost surely, 2^12957454845 is an apocalyptic number.

12957454845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12957454845 is a deficient number, since it is larger than the sum of its proper divisors (10100827395).

12957454845 is a wasteful number, since it uses less digits than its factorization.

12957454845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95042 (or 95036 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

The spelling of 12957454845 in words is "twelve billion, nine hundred fifty-seven million, four hundred fifty-four thousand, eight hundred forty-five".