251380799941 has 2 divisors, whose sum is σ = 251380799942. Its totient is φ = 251380799940.

The previous prime is 251380799927. The next prime is 251380800043. The reversal of 251380799941 is 149997083152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163091591716 + 88289208225 = 403846^2 + 297135^2 .

It is a cyclic number.

It is not a de Polignac number, because 251380799941 - 2¹⁵ = 251380767173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (251380799921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125690399970 + 125690399971.

It is an arithmetic number, because the mean of its divisors is an integer number (125690399971).

Almost surely, 2^251380799941 is an apocalyptic number.

It is an amenable number.

251380799941 is a deficient number, since it is larger than the sum of its proper divisors (1).

251380799941 is an equidigital number, since it uses as much as digits as its factorization.

251380799941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 58.

The spelling of 251380799941 in words is "two hundred fifty-one billion, three hundred eighty million, seven hundred ninety-nine thousand, nine hundred forty-one".