13977074161 has 8 divisors (see below), whose sum is σ = 14833441224. Its totient is φ = 13124505600.

The previous prime is 13977074159. The next prime is 13977074197. The reversal of 13977074161 is 16147077931.

It can be written as a sum of positive squares in 4 ways, for example, as 922640625 + 13054433536 = 30375^2 + 114256^2 .

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 13977074161 - 2¹ = 13977074159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13977074561) 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, 942040 + ... + 956761.

It is an arithmetic number, because the mean of its divisors is an integer number (1854180153).

Almost surely, 2^13977074161 is an apocalyptic number.

It is an amenable number.

13977074161 is a deficient number, since it is larger than the sum of its proper divisors (856367063).

13977074161 is a wasteful number, since it uses less digits than its factorization.

13977074161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899251.

The product of its (nonzero) digits is 222264, while the sum is 46.

The spelling of 13977074161 in words is "thirteen billion, nine hundred seventy-seven million, seventy-four thousand, one hundred sixty-one".