12534626646 has 12 divisors (see below), whose sum is σ = 27158357772. Its totient is φ = 4178208876.

The previous prime is 12534626633. The next prime is 12534626693. The reversal of 12534626646 is 64662643521.

It is a happy number.

12534626646 is a `hidden beast` number, since 1 + 2 + 5 + 346 + 266 + 46 = 666.

It is a super-2 number, since 2×12534626646² (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 5 ways as a sum of consecutive naturals, for example, 348184056 + ... + 348184091.

It is an arithmetic number, because the mean of its divisors is an integer number (2263196481).

Almost surely, 2^12534626646 is an apocalyptic number.

12534626646 is an abundant number, since it is smaller than the sum of its proper divisors (14623731126).

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

12534626646 is a wasteful number, since it uses less digits than its factorization.

12534626646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696368155 (or 696368152 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The spelling of 12534626646 in words is "twelve billion, five hundred thirty-four million, six hundred twenty-six thousand, six hundred forty-six".