13960994721 has 8 divisors (see below), whose sum is σ = 18674132640. Its totient is φ = 9277593312.

The previous prime is 13960994717. The next prime is 13960994737. The reversal of 13960994721 is 12749906931.

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

It is not a de Polignac number, because 13960994721 - 2² = 13960994717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13960994921) 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, 7433031 + ... + 7434908.

It is an arithmetic number, because the mean of its divisors is an integer number (2334266580).

Almost surely, 2^13960994721 is an apocalyptic number.

It is an amenable number.

13960994721 is a deficient number, since it is larger than the sum of its proper divisors (4713137919).

13960994721 is a wasteful number, since it uses less digits than its factorization.

13960994721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14868255.

The product of its (nonzero) digits is 734832, while the sum is 51.

The spelling of 13960994721 in words is "thirteen billion, nine hundred sixty million, nine hundred ninety-four thousand, seven hundred twenty-one".