45345131020 has 48 divisors (see below), whose sum is σ = 109375257600. Its totient is φ = 15468767424.

The previous prime is 45345131009. The next prime is 45345131063. The reversal of 45345131020 is 2013154354.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 45345131020.

It is an unprimeable number.

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, 785944 + ... + 841663.

It is an arithmetic number, because the mean of its divisors is an integer number (2278651200).

Almost surely, 2^45345131020 is an apocalyptic number.

It is an amenable number.

45345131020 is an abundant number, since it is smaller than the sum of its proper divisors (64030126580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45345131020 is a wasteful number, since it uses less digits than its factorization.

45345131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627822 (or 1627820 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 45345131020 its reverse (2013154354), we get a palindrome (47358285374).

The spelling of 45345131020 in words is "forty-five billion, three hundred forty-five million, one hundred thirty-one thousand, twenty".