45361860521 has 2 divisors, whose sum is σ = 45361860522. Its totient is φ = 45361860520.

The previous prime is 45361860503. The next prime is 45361860541. The reversal of 45361860521 is 12506816354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41805527296 + 3556333225 = 204464^2 + 59635^2 .

It is a cyclic number.

It is not a de Polignac number, because 45361860521 - 2⁶ = 45361860457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (45361860541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22680930260 + 22680930261.

It is an arithmetic number, because the mean of its divisors is an integer number (22680930261).

Almost surely, 2^45361860521 is an apocalyptic number.

It is an amenable number.

45361860521 is a deficient number, since it is larger than the sum of its proper divisors (1).

45361860521 is an equidigital number, since it uses as much as digits as its factorization.

45361860521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 45361860521 in words is "forty-five billion, three hundred sixty-one million, eight hundred sixty thousand, five hundred twenty-one".