12680504737428 has 96 divisors (see below), whose sum is σ = 32306210173440. Its totient is φ = 3839178384000.

The previous prime is 12680504737399. The next prime is 12680504737447. The reversal of 12680504737428 is 82473740508621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1286180763 + ... + 1286190621.

It is an arithmetic number, because the mean of its divisors is an integer number (336523022640).

Almost surely, 2^{12680504737428} is an apocalyptic number.

It is an amenable number.

12680504737428 is an abundant number, since it is smaller than the sum of its proper divisors (19625705436012).

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

12680504737428 is a wasteful number, since it uses less digits than its factorization.

12680504737428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17509 (or 17507 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 57.

The spelling of 12680504737428 in words is "twelve trillion, six hundred eighty billion, five hundred four million, seven hundred thirty-seven thousand, four hundred twenty-eight".