45344444520 has 32 divisors (see below), whose sum is σ = 136033333920. Its totient is φ = 12091851840.

The previous prime is 45344444491. The next prime is 45344444567. The reversal of 45344444520 is 2544444354.

It is a super-2 number, since 2×45344444520² (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 188935066 + ... + 188935305.

It is an arithmetic number, because the mean of its divisors is an integer number (4251041685).

Almost surely, 2^45344444520 is an apocalyptic number.

45344444520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45344444520 is an abundant number, since it is smaller than the sum of its proper divisors (90688889400).

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

45344444520 is a wasteful number, since it uses less digits than its factorization.

45344444520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377870385 (or 377870381 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 39.

Adding to 45344444520 its reverse (2544444354), we get a palindrome (47888888874).

The spelling of 45344444520 in words is "forty-five billion, three hundred forty-four million, four hundred forty-four thousand, five hundred twenty".