45642009593 has 2 divisors, whose sum is σ = 45642009594. Its totient is φ = 45642009592.

The previous prime is 45642009533. The next prime is 45642009667. The reversal of 45642009593 is 39590024654.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43469331049 + 2172678544 = 208493^2 + 46612^2 .

It is a cyclic number.

It is not a de Polignac number, because 45642009593 - 2⁶ = 45642009529 is a prime.

It is not a weakly prime, because it can be changed into another prime (45642009533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22821004796 + 22821004797.

It is an arithmetic number, because the mean of its divisors is an integer number (22821004797).

Almost surely, 2^45642009593 is an apocalyptic number.

It is an amenable number.

45642009593 is a deficient number, since it is larger than the sum of its proper divisors (1).

45642009593 is an equidigital number, since it uses as much as digits as its factorization.

45642009593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 45642009593 in words is "forty-five billion, six hundred forty-two million, nine thousand, five hundred ninety-three".