13913462691 has 32 divisors (see below), whose sum is σ = 20736763200. Its totient is φ = 9219882240.

The previous prime is 13913462669. The next prime is 13913462713. The reversal of 13913462691 is 19626431931.

13913462691 is a `hidden beast` number, since 1 + 3 + 9 + 13 + 4 + 626 + 9 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (13913462669) and next prime (13913462713).

It is not a de Polignac number, because 13913462691 - 2²⁹ = 13376591779 is a prime.

It is a super-2 number, since 2×13913462691² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13913463691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4703785 + ... + 4706741.

It is an arithmetic number, because the mean of its divisors is an integer number (648023850).

Almost surely, 2^13913462691 is an apocalyptic number.

13913462691 is a deficient number, since it is larger than the sum of its proper divisors (6823300509).

13913462691 is a wasteful number, since it uses less digits than its factorization.

13913462691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956 (or 3950 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The spelling of 13913462691 in words is "thirteen billion, nine hundred thirteen million, four hundred sixty-two thousand, six hundred ninety-one".