45444045272 has 16 divisors (see below), whose sum is σ = 85239454560. Its totient is φ = 22713524064.

The previous prime is 45444045253. The next prime is 45444045281. The reversal of 45444045272 is 27254044454.

It is a super-2 number, since 2×45444045272² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1039568 + ... + 1082399.

It is an arithmetic number, because the mean of its divisors is an integer number (5327465910).

Almost surely, 2^45444045272 is an apocalyptic number.

It is an amenable number.

45444045272 is a deficient number, since it is larger than the sum of its proper divisors (39795409288).

45444045272 is a wasteful number, since it uses less digits than its factorization.

45444045272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124650 (or 2124646 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 41.

The spelling of 45444045272 in words is "forty-five billion, four hundred forty-four million, forty-five thousand, two hundred seventy-two".