45189928517 has 2 divisors, whose sum is σ = 45189928518. Its totient is φ = 45189928516.

The previous prime is 45189928471. The next prime is 45189928519. The reversal of 45189928517 is 71582998154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40945927201 + 4244001316 = 202351^2 + 65146^2 .

It is a cyclic number.

It is not a de Polignac number, because 45189928517 - 2²² = 45185734213 is a prime.

Together with 45189928519, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45189928519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22594964258 + 22594964259.

It is an arithmetic number, because the mean of its divisors is an integer number (22594964259).

Almost surely, 2^45189928517 is an apocalyptic number.

It is an amenable number.

45189928517 is a deficient number, since it is larger than the sum of its proper divisors (1).

45189928517 is an equidigital number, since it uses as much as digits as its factorization.

45189928517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 59.

The spelling of 45189928517 in words is "forty-five billion, one hundred eighty-nine million, nine hundred twenty-eight thousand, five hundred seventeen".