13040728372 has 12 divisors (see below), whose sum is σ = 26081456800. Its totient is φ = 5588883576.

The previous prime is 13040728357. The next prime is 13040728391. The reversal of 13040728372 is 27382704031.

13040728372 is an admirable number.

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, 232870122 + ... + 232870177.

Almost surely, 2^13040728372 is an apocalyptic number.

It is an amenable number.

13040728372 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13040728372 is a wasteful number, since it uses less digits than its factorization.

13040728372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465740310 (or 465740308 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 13040728372 in words is "thirteen billion, forty million, seven hundred twenty-eight thousand, three hundred seventy-two".