12897962652 has 12 divisors (see below), whose sum is σ = 30095246216. Its totient is φ = 4299320880.

The previous prime is 12897962569. The next prime is 12897962723. The reversal of 12897962652 is 25626979821.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12897962592 and 12897962601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537415099 + ... + 537415122.

Almost surely, 2^12897962652 is an apocalyptic number.

12897962652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12897962652 is an abundant number, since it is smaller than the sum of its proper divisors (17197283564).

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

12897962652 is a wasteful number, since it uses less digits than its factorization.

12897962652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074830228 (or 1074830226 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The spelling of 12897962652 in words is "twelve billion, eight hundred ninety-seven million, nine hundred sixty-two thousand, six hundred fifty-two".