12657562072 has 8 divisors (see below), whose sum is σ = 23732928900. Its totient is φ = 6328781032.

The previous prime is 12657561997. The next prime is 12657562091. The reversal of 12657562072 is 27026575621.

12657562072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 791097622 + ... + 791097637.

Almost surely, 2^12657562072 is an apocalyptic number.

It is an amenable number.

12657562072 is a deficient number, since it is larger than the sum of its proper divisors (11075366828).

12657562072 is a wasteful number, since it uses less digits than its factorization.

12657562072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582195265 (or 1582195261 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 12657562072 in words is "twelve billion, six hundred fifty-seven million, five hundred sixty-two thousand, seventy-two".