13507643240 has 64 divisors (see below), whose sum is σ = 37405791360. Its totient is φ = 4274945280.

The previous prime is 13507643231. The next prime is 13507643269. The reversal of 13507643240 is 4234670531.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 13507643240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1851806 + ... + 1859085.

It is an arithmetic number, because the mean of its divisors is an integer number (584465490).

Almost surely, 2^13507643240 is an apocalyptic number.

13507643240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13507643240 is an abundant number, since it is smaller than the sum of its proper divisors (23898148120).

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

13507643240 is a wasteful number, since it uses less digits than its factorization.

13507643240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710922 (or 3710918 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 13507643240 in words is "thirteen billion, five hundred seven million, six hundred forty-three thousand, two hundred forty".