13607652640 has 48 divisors (see below), whose sum is σ = 32159288952. Its totient is φ = 5441163264.

The previous prime is 13607652607. The next prime is 13607652661. The reversal of 13607652640 is 4625670631.

It can be written as a sum of positive squares in 4 ways, for example, as 13575978256 + 31674384 = 116516^2 + 5628^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 13607652593 and 13607652602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501502 + ... + 527938.

Almost surely, 2^13607652640 is an apocalyptic number.

13607652640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13607652640 is an abundant number, since it is smaller than the sum of its proper divisors (18551636312).

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

13607652640 is a wasteful number, since it uses less digits than its factorization.

13607652640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29669 (or 29661 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 13607652640 in words is "thirteen billion, six hundred seven million, six hundred fifty-two thousand, six hundred forty".