13540817012 has 12 divisors (see below), whose sum is σ = 24021038916. Its totient is φ = 6677663040.

The previous prime is 13540817009. The next prime is 13540817023. The reversal of 13540817012 is 21071804531.

It can be written as a sum of positive squares in 2 ways, for example, as 9369465616 + 4171351396 = 96796^2 + 64586^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13540817012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23186039 + ... + 23186622.

It is an arithmetic number, because the mean of its divisors is an integer number (2001753243).

Almost surely, 2^13540817012 is an apocalyptic number.

It is an amenable number.

13540817012 is a deficient number, since it is larger than the sum of its proper divisors (10480221904).

13540817012 is a wasteful number, since it uses less digits than its factorization.

13540817012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46372738 (or 46372736 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 13540817012 in words is "thirteen billion, five hundred forty million, eight hundred seventeen thousand, twelve".