13590369640 has 16 divisors (see below), whose sum is σ = 30578331780. Its totient is φ = 5436147840.

The previous prime is 13590369629. The next prime is 13590369641. The reversal of 13590369640 is 4696309531.

It can be written as a sum of positive squares in 2 ways, for example, as 13514992516 + 75377124 = 116254^2 + 8682^2 .

It is not an unprimeable number, because it can be changed into a prime (13590369641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169879581 + ... + 169879660.

Almost surely, 2^13590369640 is an apocalyptic number.

13590369640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13590369640 is an abundant number, since it is smaller than the sum of its proper divisors (16987962140).

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

13590369640 is a wasteful number, since it uses less digits than its factorization.

13590369640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339759252 (or 339759248 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 46.

The spelling of 13590369640 in words is "thirteen billion, five hundred ninety million, three hundred sixty-nine thousand, six hundred forty".