13916504431 has 16 divisors (see below), whose sum is σ = 14231194560. Its totient is φ = 13605580800.

The previous prime is 13916504387. The next prime is 13916504447. The reversal of 13916504431 is 13440561931.

It is a cyclic number.

It is not a de Polignac number, because 13916504431 - 2⁹ = 13916503919 is a prime.

It is a super-2 number, since 2×13916504431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13916514431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6535575 + ... + 6537703.

It is an arithmetic number, because the mean of its divisors is an integer number (889449660).

Almost surely, 2^13916504431 is an apocalyptic number.

13916504431 is a deficient number, since it is larger than the sum of its proper divisors (314690129).

13916504431 is a wasteful number, since it uses less digits than its factorization.

13916504431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 13916504431 in words is "thirteen billion, nine hundred sixteen million, five hundred four thousand, four hundred thirty-one".