45431110520 has 128 divisors (see below), whose sum is σ = 108517881600. Its totient is φ = 17069875200.

The previous prime is 45431110481. The next prime is 45431110523. The reversal of 45431110520 is 2501113454.

It is a self number, because there is not a number n which added to its sum of digits gives 45431110520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45431110523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78736472 + ... + 78737048.

It is an arithmetic number, because the mean of its divisors is an integer number (847795950).

Almost surely, 2^45431110520 is an apocalyptic number.

45431110520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45431110520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54258940800).

45431110520 is an abundant number, since it is smaller than the sum of its proper divisors (63086771080).

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

45431110520 is a wasteful number, since it uses less digits than its factorization.

45431110520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1305 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 45431110520 its reverse (2501113454), we get a palindrome (47932223974).

The spelling of 45431110520 in words is "forty-five billion, four hundred thirty-one million, one hundred ten thousand, five hundred twenty".