46591639961 has 2 divisors, whose sum is σ = 46591639962. Its totient is φ = 46591639960.

The previous prime is 46591639933. The next prime is 46591639979. The reversal of 46591639961 is 16993619564.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46216830361 + 374809600 = 214981^2 + 19360^2 .

It is a cyclic number.

It is not a de Polignac number, because 46591639961 - 2¹⁴ = 46591623577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 46591639961.

It is not a weakly prime, because it can be changed into another prime (46591639561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23295819980 + 23295819981.

It is an arithmetic number, because the mean of its divisors is an integer number (23295819981).

Almost surely, 2^46591639961 is an apocalyptic number.

It is an amenable number.

46591639961 is a deficient number, since it is larger than the sum of its proper divisors (1).

46591639961 is an equidigital number, since it uses as much as digits as its factorization.

46591639961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9447840, while the sum is 59.

The spelling of 46591639961 in words is "forty-six billion, five hundred ninety-one million, six hundred thirty-nine thousand, nine hundred sixty-one".