13949501667 has 16 divisors (see below), whose sum is σ = 18659447040. Its totient is φ = 9269642592.

The previous prime is 13949501659. The next prime is 13949501677. The reversal of 13949501667 is 76610594931.

It is not a de Polignac number, because 13949501667 - 2³ = 13949501659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13949501677) 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, 3041458 + ... + 3046040.

It is an arithmetic number, because the mean of its divisors is an integer number (1166215440).

Almost surely, 2^13949501667 is an apocalyptic number.

13949501667 is a deficient number, since it is larger than the sum of its proper divisors (4709945373).

13949501667 is a wasteful number, since it uses less digits than its factorization.

13949501667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7642.

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 13949501667 in words is "thirteen billion, nine hundred forty-nine million, five hundred one thousand, six hundred sixty-seven".