45645641431 has 8 divisors (see below), whose sum is σ = 49663617584. Its totient is φ = 41700061440.

The previous prime is 45645641423. The next prime is 45645641443. The reversal of 45645641431 is 13414654654.

45645641431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45645641431 - 2³ = 45645641423 is a prime.

It is a super-2 number, since 2×45645641431² (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 (45645641411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18097725 + ... + 18100246.

It is an arithmetic number, because the mean of its divisors is an integer number (6207952198).

Almost surely, 2^45645641431 is an apocalyptic number.

45645641431 is a deficient number, since it is larger than the sum of its proper divisors (4017976153).

45645641431 is a wasteful number, since it uses less digits than its factorization.

45645641431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36198081.

The product of its digits is 691200, while the sum is 43.

The spelling of 45645641431 in words is "forty-five billion, six hundred forty-five million, six hundred forty-one thousand, four hundred thirty-one".