12690654264 has 80 divisors (see below), whose sum is σ = 36692272320. Its totient is φ = 4093752960.

The previous prime is 12690654253. The next prime is 12690654311. The reversal of 12690654264 is 46245609621.

12690654264 is a `hidden beast` number, since 12 + 6 + 90 + 6 + 542 + 6 + 4 = 666.

It is a super-2 number, since 2×12690654264² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 295789 + ... + 335964.

It is an arithmetic number, because the mean of its divisors is an integer number (458653404).

Almost surely, 2^12690654264 is an apocalyptic number.

It is an amenable number.

12690654264 is an abundant number, since it is smaller than the sum of its proper divisors (24001618056).

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

12690654264 is a wasteful number, since it uses less digits than its factorization.

12690654264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631802 (or 631789 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 12690654264 in words is "twelve billion, six hundred ninety million, six hundred fifty-four thousand, two hundred sixty-four".