251364511379 has 2 divisors, whose sum is σ = 251364511380. Its totient is φ = 251364511378.

The previous prime is 251364511361. The next prime is 251364511441. The reversal of 251364511379 is 973115463152.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-251364511379 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (251364511339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125682255689 + 125682255690.

It is an arithmetic number, because the mean of its divisors is an integer number (125682255690).

Almost surely, 2^251364511379 is an apocalyptic number.

251364511379 is a deficient number, since it is larger than the sum of its proper divisors (1).

251364511379 is an equidigital number, since it uses as much as digits as its factorization.

251364511379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 47.

The spelling of 251364511379 in words is "two hundred fifty-one billion, three hundred sixty-four million, five hundred eleven thousand, three hundred seventy-nine".