13912917915 has 32 divisors (see below), whose sum is σ = 24276510720. Its totient is φ = 6762727296.

The previous prime is 13912917913. The next prime is 13912917923. The reversal of 13912917915 is 51971921931.

It is not a de Polignac number, because 13912917915 - 2¹ = 13912917913 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13912917913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 436167 + ... + 466976.

It is an arithmetic number, because the mean of its divisors is an integer number (758640960).

Almost surely, 2^13912917915 is an apocalyptic number.

13912917915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13912917915 is a deficient number, since it is larger than the sum of its proper divisors (10363592805).

13912917915 is a wasteful number, since it uses less digits than its factorization.

13912917915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903243.

The product of its digits is 153090, while the sum is 48.

The spelling of 13912917915 in words is "thirteen billion, nine hundred twelve million, nine hundred seventeen thousand, nine hundred fifteen".