13657770808 has 32 divisors (see below), whose sum is σ = 28009359360. Its totient is φ = 6191853280.

The previous prime is 13657770793. The next prime is 13657770809. The reversal of 13657770808 is 80807775631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13657770809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168910 + ... + 236317.

It is an arithmetic number, because the mean of its divisors is an integer number (875292480).

Almost surely, 2^13657770808 is an apocalyptic number.

It is an amenable number.

13657770808 is an abundant number, since it is smaller than the sum of its proper divisors (14351588552).

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

13657770808 is a wasteful number, since it uses less digits than its factorization.

13657770808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405627 (or 405623 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 13657770808 in words is "thirteen billion, six hundred fifty-seven million, seven hundred seventy thousand, eight hundred eight".