45515920049 has 2 divisors, whose sum is σ = 45515920050. Its totient is φ = 45515920048.

The previous prime is 45515920027. The next prime is 45515920069. The reversal of 45515920049 is 94002951554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45382633024 + 133287025 = 213032^2 + 11545^2 .

It is a cyclic number.

It is not a de Polignac number, because 45515920049 - 2²⁰ = 45514871473 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45515919991 and 45515920009.

It is not a weakly prime, because it can be changed into another prime (45515920069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22757960024 + 22757960025.

It is an arithmetic number, because the mean of its divisors is an integer number (22757960025).

Almost surely, 2^45515920049 is an apocalyptic number.

It is an amenable number.

45515920049 is a deficient number, since it is larger than the sum of its proper divisors (1).

45515920049 is an equidigital number, since it uses as much as digits as its factorization.

45515920049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 44.

The spelling of 45515920049 in words is "forty-five billion, five hundred fifteen million, nine hundred twenty thousand, forty-nine".