45421403531 has 8 divisors (see below), whose sum is σ = 52969567200. Its totient is φ = 38932631304.

The previous prime is 45421403507. The next prime is 45421403549. The reversal of 45421403531 is 13530412454.

It is not a de Polignac number, because 45421403531 - 2¹⁸ = 45421141387 is a prime.

It is a super-2 number, since 2×45421403531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45421402531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66211616 + ... + 66212301.

It is an arithmetic number, because the mean of its divisors is an integer number (6621195900).

Almost surely, 2^45421403531 is an apocalyptic number.

45421403531 is a deficient number, since it is larger than the sum of its proper divisors (7548163669).

45421403531 is an equidigital number, since it uses as much as digits as its factorization.

45421403531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132423938 (or 132423924 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 45421403531 its reverse (13530412454), we get a palindrome (58951815985).

The spelling of 45421403531 in words is "forty-five billion, four hundred twenty-one million, four hundred three thousand, five hundred thirty-one".