461617753071421 has 2 divisors, whose sum is σ = 461617753071422. Its totient is φ = 461617753071420.

The previous prime is 461617753071361. The next prime is 461617753071457. The reversal of 461617753071421 is 124170357716164.

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., 266878128324025 + 194739624747396 = 16336405^2 + 13954914^2 .

It is a cyclic number.

It is not a de Polignac number, because 461617753071421 - 2⁹ = 461617753070909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461617753071721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230808876535710 + 230808876535711.

It is an arithmetic number, because the mean of its divisors is an integer number (230808876535711).

Almost surely, 2^{461617753071421} is an apocalyptic number.

It is an amenable number.

461617753071421 is a deficient number, since it is larger than the sum of its proper divisors (1).

461617753071421 is an equidigital number, since it uses as much as digits as its factorization.

461617753071421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 461617753071421 in words is "four hundred sixty-one trillion, six hundred seventeen billion, seven hundred fifty-three million, seventy-one thousand, four hundred twenty-one".