13940776251 has 6 divisors (see below), whose sum is σ = 20136676820. Its totient is φ = 9293850828.

The previous prime is 13940776249. The next prime is 13940776259. The reversal of 13940776251 is 15267704931.

13940776251 is a `hidden beast` number, since 1 + 394 + 0 + 7 + 7 + 6 + 251 = 666.

It is not a de Polignac number, because 13940776251 - 2¹ = 13940776249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13940776197 and 13940776206.

It is not an unprimeable number, because it can be changed into a prime (13940776259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 774487561 + ... + 774487578.

Almost surely, 2^13940776251 is an apocalyptic number.

13940776251 is a deficient number, since it is larger than the sum of its proper divisors (6195900569).

13940776251 is a wasteful number, since it uses less digits than its factorization.

13940776251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548975145 (or 1548975142 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 13940776251 in words is "thirteen billion, nine hundred forty million, seven hundred seventy-six thousand, two hundred fifty-one".