251319402967 has 2 divisors, whose sum is σ = 251319402968. Its totient is φ = 251319402966.

The previous prime is 251319402959. The next prime is 251319402973. The reversal of 251319402967 is 769204913152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 251319402967 - 2³ = 251319402959 is a prime.

It is a super-2 number, since 2×251319402967² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 251319402967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (251319402977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125659701483 + 125659701484.

It is an arithmetic number, because the mean of its divisors is an integer number (125659701484).

Almost surely, 2^251319402967 is an apocalyptic number.

251319402967 is a deficient number, since it is larger than the sum of its proper divisors (1).

251319402967 is an equidigital number, since it uses as much as digits as its factorization.

251319402967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 251319402967 in words is "two hundred fifty-one billion, three hundred nineteen million, four hundred two thousand, nine hundred sixty-seven".