461251442661253 has 2 divisors, whose sum is σ = 461251442661254. Its totient is φ = 461251442661252.

The previous prime is 461251442661227. The next prime is 461251442661271. The reversal of 461251442661253 is 352166244152164.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 456744559925889 + 4506882735364 = 21371583^2 + 2122942^2 .

It is a cyclic number.

It is not a de Polignac number, because 461251442661253 - 2⁴⁵ = 426067070572421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 461251442661253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461251449661253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230625721330626 + 230625721330627.

It is an arithmetic number, because the mean of its divisors is an integer number (230625721330627).

Almost surely, 2^{461251442661253} is an apocalyptic number.

It is an amenable number.

461251442661253 is a deficient number, since it is larger than the sum of its proper divisors (1).

461251442661253 is an equidigital number, since it uses as much as digits as its factorization.

461251442661253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8294400, while the sum is 52.

The spelling of 461251442661253 in words is "four hundred sixty-one trillion, two hundred fifty-one billion, four hundred forty-two million, six hundred sixty-one thousand, two hundred fifty-three".