12457209720892 has 12 divisors (see below), whose sum is σ = 22003856423640. Its totient is φ = 6170393599856.

The previous prime is 12457209720889. The next prime is 12457209720941. The reversal of 12457209720892 is 29802790275421.

It is a super-2 number, since 2×12457209720892² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14552814667 + ... + 14552815522.

It is an arithmetic number, because the mean of its divisors is an integer number (1833654701970).

Almost surely, 2^{12457209720892} is an apocalyptic number.

It is an amenable number.

12457209720892 is a deficient number, since it is larger than the sum of its proper divisors (9546646702748).

12457209720892 is a wasteful number, since it uses less digits than its factorization.

12457209720892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29105630300 (or 29105630298 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 12457209720892 in words is "twelve trillion, four hundred fifty-seven billion, two hundred nine million, seven hundred twenty thousand, eight hundred ninety-two".