12651634652052 has 48 divisors (see below), whose sum is σ = 32749994188800. Its totient is φ = 3768848532960.

The previous prime is 12651634652051. The next prime is 12651634652093. The reversal of 12651634652052 is 25025643615621.

It is a super-2 number, since 2×12651634652052² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12651634651992 and 12651634652010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12651634652051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 812244052 + ... + 812259627.

It is an arithmetic number, because the mean of its divisors is an integer number (682291545600).

Almost surely, 2^{12651634652052} is an apocalyptic number.

12651634652052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12651634652052 is an abundant number, since it is smaller than the sum of its proper divisors (20098359536748).

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

12651634652052 is a wasteful number, since it uses less digits than its factorization.

12651634652052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624503756 (or 1624503754 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 12651634652052 in words is "twelve trillion, six hundred fifty-one billion, six hundred thirty-four million, six hundred fifty-two thousand, fifty-two".