46464305981 has 2 divisors, whose sum is σ = 46464305982. Its totient is φ = 46464305980.

The previous prime is 46464305977. The next prime is 46464305989. The reversal of 46464305981 is 18950346464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45911632900 + 552673081 = 214270^2 + 23509^2 .

It is a cyclic number.

It is not a de Polignac number, because 46464305981 - 2² = 46464305977 is a prime.

It is a super-2 number, since 2×46464305981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46464305989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23232152990 + 23232152991.

It is an arithmetic number, because the mean of its divisors is an integer number (23232152991).

Almost surely, 2^46464305981 is an apocalyptic number.

It is an amenable number.

46464305981 is a deficient number, since it is larger than the sum of its proper divisors (1).

46464305981 is an equidigital number, since it uses as much as digits as its factorization.

46464305981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 46464305981 in words is "forty-six billion, four hundred sixty-four million, three hundred five thousand, nine hundred eighty-one".