1913931642925 has 12 divisors (see below), whose sum is σ = 2377109303680. Its totient is φ = 1528671723120.

The previous prime is 1913931642893. The next prime is 1913931642929. The reversal of 1913931642925 is 5292461393191.

It is not a de Polignac number, because 1913931642925 - 2⁵ = 1913931642893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913931642929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61823997 + ... + 61854946.

Almost surely, 2^{1913931642925} is an apocalyptic number.

It is an amenable number.

1913931642925 is a deficient number, since it is larger than the sum of its proper divisors (463177660755).

1913931642925 is a wasteful number, since it uses less digits than its factorization.

1913931642925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123679572 (or 123679567 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 55.

The spelling of 1913931642925 in words is "one trillion, nine hundred thirteen billion, nine hundred thirty-one million, six hundred forty-two thousand, nine hundred twenty-five".