45418920931 has 2 divisors, whose sum is σ = 45418920932. Its totient is φ = 45418920930.

The previous prime is 45418920929. The next prime is 45418920947. The reversal of 45418920931 is 13902981454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45418920931 - 2¹ = 45418920929 is a prime.

It is a super-2 number, since 2×45418920931² (a number of 22 digits) contains 22 as substring.

Together with 45418920929, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45418920031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22709460465 + 22709460466.

It is an arithmetic number, because the mean of its divisors is an integer number (22709460466).

Almost surely, 2^45418920931 is an apocalyptic number.

45418920931 is a deficient number, since it is larger than the sum of its proper divisors (1).

45418920931 is an equidigital number, since it uses as much as digits as its factorization.

45418920931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 45418920931 in words is "forty-five billion, four hundred eighteen million, nine hundred twenty thousand, nine hundred thirty-one".