461511612251 has 2 divisors, whose sum is σ = 461511612252. Its totient is φ = 461511612250.

The previous prime is 461511612241. The next prime is 461511612259. The reversal of 461511612251 is 152216115164.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 461511612251 - 2¹⁰ = 461511611227 is a prime.

It is not a weakly prime, because it can be changed into another prime (461511612259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230755806125 + 230755806126.

It is an arithmetic number, because the mean of its divisors is an integer number (230755806126).

Almost surely, 2^461511612251 is an apocalyptic number.

461511612251 is a deficient number, since it is larger than the sum of its proper divisors (1).

461511612251 is an equidigital number, since it uses as much as digits as its factorization.

461511612251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 35.

The spelling of 461511612251 in words is "four hundred sixty-one billion, five hundred eleven million, six hundred twelve thousand, two hundred fifty-one".