45845737934921 has 2 divisors, whose sum is σ = 45845737934922. Its totient is φ = 45845737934920.

The previous prime is 45845737934911. The next prime is 45845737934963. The reversal of 45845737934921 is 12943973754854.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43720382155321 + 2125355779600 = 6612139^2 + 1457860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45845737934921 is a prime.

It is not a weakly prime, because it can be changed into another prime (45845737934911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22922868967460 + 22922868967461.

It is an arithmetic number, because the mean of its divisors is an integer number (22922868967461).

Almost surely, 2^{45845737934921} is an apocalyptic number.

It is an amenable number.

45845737934921 is a deficient number, since it is larger than the sum of its proper divisors (1).

45845737934921 is an equidigital number, since it uses as much as digits as its factorization.

45845737934921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 914457600, while the sum is 71.

The spelling of 45845737934921 in words is "forty-five trillion, eight hundred forty-five billion, seven hundred thirty-seven million, nine hundred thirty-four thousand, nine hundred twenty-one".