45511431439 has 4 divisors (see below), whose sum is σ = 45512839224. Its totient is φ = 45510023656.

The previous prime is 45511431397. The next prime is 45511431473. The reversal of 45511431439 is 93413411554.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45511431439 - 2²¹ = 45509334287 is a prime.

It is a super-2 number, since 2×45511431439² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45511431239) 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 3 ways as a sum of consecutive naturals, for example, 654232 + ... + 720445.

It is an arithmetic number, because the mean of its divisors is an integer number (11378209806).

Almost surely, 2^45511431439 is an apocalyptic number.

45511431439 is a deficient number, since it is larger than the sum of its proper divisors (1407785).

45511431439 is a wasteful number, since it uses less digits than its factorization.

45511431439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407784.

The product of its digits is 129600, while the sum is 40.

The spelling of 45511431439 in words is "forty-five billion, five hundred eleven million, four hundred thirty-one thousand, four hundred thirty-nine".