13634626957 has 32 divisors (see below), whose sum is σ = 16448140800. Its totient is φ = 11289882240.

The previous prime is 13634626949. The next prime is 13634626963. The reversal of 13634626957 is 75962643631.

It is a happy number.

It is not a de Polignac number, because 13634626957 - 2³ = 13634626949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13634626927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1443783 + ... + 1453195.

It is an arithmetic number, because the mean of its divisors is an integer number (514004400).

Almost surely, 2^13634626957 is an apocalyptic number.

It is an amenable number.

13634626957 is a deficient number, since it is larger than the sum of its proper divisors (2813513843).

13634626957 is an equidigital number, since it uses as much as digits as its factorization.

13634626957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9578 (or 9564 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 52.

The spelling of 13634626957 in words is "thirteen billion, six hundred thirty-four million, six hundred twenty-six thousand, nine hundred fifty-seven".