13971773294 has 16 divisors (see below), whose sum is σ = 21941554320. Its totient is φ = 6663726720.

The previous prime is 13971773293. The next prime is 13971773311. The reversal of 13971773294 is 49237717931.

It is a super-2 number, since 2×13971773294² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13971773293) 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, 1446347 + ... + 1455974.

It is an arithmetic number, because the mean of its divisors is an integer number (1371347145).

Almost surely, 2^13971773294 is an apocalyptic number.

13971773294 is a deficient number, since it is larger than the sum of its proper divisors (7969781026).

13971773294 is a wasteful number, since it uses less digits than its factorization.

13971773294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902435.

The product of its digits is 2000376, while the sum is 53.

The spelling of 13971773294 in words is "thirteen billion, nine hundred seventy-one million, seven hundred seventy-three thousand, two hundred ninety-four".