45045422993 has 2 divisors, whose sum is σ = 45045422994. Its totient is φ = 45045422992.

The previous prime is 45045422969. The next prime is 45045423023. The reversal of 45045422993 is 39922454054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37654238209 + 7391184784 = 194047^2 + 85972^2 .

It is a cyclic number.

It is not a de Polignac number, because 45045422993 - 2³⁴ = 27865553809 is a prime.

It is not a weakly prime, because it can be changed into another prime (45045422923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22522711496 + 22522711497.

It is an arithmetic number, because the mean of its divisors is an integer number (22522711497).

Almost surely, 2^45045422993 is an apocalyptic number.

It is an amenable number.

45045422993 is a deficient number, since it is larger than the sum of its proper divisors (1).

45045422993 is an equidigital number, since it uses as much as digits as its factorization.

45045422993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 45045422993 in words is "forty-five billion, forty-five million, four hundred twenty-two thousand, nine hundred ninety-three".