1250353444961 has 2 divisors, whose sum is σ = 1250353444962. Its totient is φ = 1250353444960.

The previous prime is 1250353444937. The next prime is 1250353445093. The reversal of 1250353444961 is 1694443530521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1246348960000 + 4004484961 = 1116400^2 + 63281^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250353444961 - 2¹⁸ = 1250353182817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1250353494961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625176722480 + 625176722481.

It is an arithmetic number, because the mean of its divisors is an integer number (625176722481).

Almost surely, 2^{1250353444961} is an apocalyptic number.

It is an amenable number.

1250353444961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250353444961 is an equidigital number, since it uses as much as digits as its factorization.

1250353444961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 1250353444961 in words is "one trillion, two hundred fifty billion, three hundred fifty-three million, four hundred forty-four thousand, nine hundred sixty-one".