461574503553991 has 2 divisors, whose sum is σ = 461574503553992. Its totient is φ = 461574503553990.

The previous prime is 461574503553953. The next prime is 461574503554063. The reversal of 461574503553991 is 199355305475164.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 461574503553991 - 2²⁷ = 461574369336263 is a prime.

It is a super-2 number, since 2×461574503553991² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461574503553901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230787251776995 + 230787251776996.

It is an arithmetic number, because the mean of its divisors is an integer number (230787251776996).

Almost surely, 2^{461574503553991} is an apocalyptic number.

461574503553991 is a deficient number, since it is larger than the sum of its proper divisors (1).

461574503553991 is an equidigital number, since it uses as much as digits as its factorization.

461574503553991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180000, while the sum is 67.

The spelling of 461574503553991 in words is "four hundred sixty-one trillion, five hundred seventy-four billion, five hundred three million, five hundred fifty-three thousand, nine hundred ninety-one".