13994055631 has 8 divisors (see below), whose sum is σ = 14873579424. Its totient is φ = 13120792320.

The previous prime is 13994055613. The next prime is 13994055641. The reversal of 13994055631 is 13655049931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13994055631 - 2²³ = 13985667023 is a prime.

It is a super-2 number, since 2×13994055631² (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 (13994055641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560510 + ... + 1569451.

It is an arithmetic number, because the mean of its divisors is an integer number (1859197428).

Almost surely, 2^13994055631 is an apocalyptic number.

13994055631 is a deficient number, since it is larger than the sum of its proper divisors (879523793).

13994055631 is a wasteful number, since it uses less digits than its factorization.

13994055631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130241.

The product of its (nonzero) digits is 437400, while the sum is 46.

The spelling of 13994055631 in words is "thirteen billion, nine hundred ninety-four million, fifty-five thousand, six hundred thirty-one".