13031891450516 has 12 divisors (see below), whose sum is σ = 22985383346688. Its totient is φ = 6464639065752.

The previous prime is 13031891450443. The next prime is 13031891450521. The reversal of 13031891450516 is 61505419813031.

13031891450516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 12826664306 + ... + 12826665321.

It is an arithmetic number, because the mean of its divisors is an integer number (1915448612224).

Almost surely, 2^{13031891450516} is an apocalyptic number.

It is an amenable number.

13031891450516 is a deficient number, since it is larger than the sum of its proper divisors (9953491896172).

13031891450516 is a wasteful number, since it uses less digits than its factorization.

13031891450516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25653329758 (or 25653329756 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 47.

The spelling of 13031891450516 in words is "thirteen trillion, thirty-one billion, eight hundred ninety-one million, four hundred fifty thousand, five hundred sixteen".