45418732689 has 16 divisors (see below), whose sum is σ = 66669704640. Its totient is φ = 27273965760.

The previous prime is 45418732657. The next prime is 45418732691. The reversal of 45418732689 is 98623781454.

It is a happy number.

It is not a de Polignac number, because 45418732689 - 2⁵ = 45418732657 is a prime.

It is a super-2 number, since 2×45418732689² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45418732649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6309822 + ... + 6317015.

It is an arithmetic number, because the mean of its divisors is an integer number (4166856540).

Almost surely, 2^45418732689 is an apocalyptic number.

It is an amenable number.

45418732689 is a deficient number, since it is larger than the sum of its proper divisors (21250971951).

45418732689 is a wasteful number, since it uses less digits than its factorization.

45418732689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12626960.

The product of its digits is 11612160, while the sum is 57.

The spelling of 45418732689 in words is "forty-five billion, four hundred eighteen million, seven hundred thirty-two thousand, six hundred eighty-nine".