13397874631878 has 32 divisors (see below), whose sum is σ = 29521149518592. Its totient is φ = 4019764364000.

The previous prime is 13397874631853. The next prime is 13397874631997. The reversal of 13397874631878 is 87813647879331.

It is a congruent number.

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, 1004934426 + ... + 1004947757.

It is an arithmetic number, because the mean of its divisors is an integer number (922535922456).

Almost surely, 2^{13397874631878} is an apocalyptic number.

13397874631878 is an abundant number, since it is smaller than the sum of its proper divisors (16123274886714).

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

13397874631878 is a wasteful number, since it uses less digits than its factorization.

13397874631878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009882300.

The product of its digits is 1024192512, while the sum is 75.

The spelling of 13397874631878 in words is "thirteen trillion, three hundred ninety-seven billion, eight hundred seventy-four million, six hundred thirty-one thousand, eight hundred seventy-eight".