45323706521 has 2 divisors, whose sum is σ = 45323706522. Its totient is φ = 45323706520.

The previous prime is 45323706419. The next prime is 45323706529. The reversal of 45323706521 is 12560732354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34375014025 + 10948692496 = 185405^2 + 104636^2 .

It is a cyclic number.

It is not a de Polignac number, because 45323706521 - 2¹⁸ = 45323444377 is a prime.

It is not a weakly prime, because it can be changed into another prime (45323706529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22661853260 + 22661853261.

It is an arithmetic number, because the mean of its divisors is an integer number (22661853261).

Almost surely, 2^45323706521 is an apocalyptic number.

It is an amenable number.

45323706521 is a deficient number, since it is larger than the sum of its proper divisors (1).

45323706521 is an equidigital number, since it uses as much as digits as its factorization.

45323706521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 38.

The spelling of 45323706521 in words is "forty-five billion, three hundred twenty-three million, seven hundred six thousand, five hundred twenty-one".