12635064512 has 56 divisors (see below), whose sum is σ = 28667598240. Its totient is φ = 5412556800.

The previous prime is 12635064499. The next prime is 12635064529. The reversal of 12635064512 is 21546053621.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249814 + ... + 1259882.

Almost surely, 2^12635064512 is an apocalyptic number.

It is an amenable number.

12635064512 is an abundant number, since it is smaller than the sum of its proper divisors (16032533728).

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

12635064512 is a wasteful number, since it uses less digits than its factorization.

12635064512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12889 (or 12879 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 12635064512 in words is "twelve billion, six hundred thirty-five million, sixty-four thousand, five hundred twelve".