45132779272 has 48 divisors (see below), whose sum is σ = 98510322960. Its totient is φ = 19328825376.

The previous prime is 45132779267. The next prime is 45132779281. The reversal of 45132779272 is 27297723154.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 519043 + ... + 599725.

It is an arithmetic number, because the mean of its divisors is an integer number (2052298395).

Almost surely, 2^45132779272 is an apocalyptic number.

It is an amenable number.

45132779272 is an abundant number, since it is smaller than the sum of its proper divisors (53377543688).

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

45132779272 is a wasteful number, since it uses less digits than its factorization.

45132779272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82130 (or 82119 counting only the distinct ones).

The product of its digits is 1481760, while the sum is 49.

The spelling of 45132779272 in words is "forty-five billion, one hundred thirty-two million, seven hundred seventy-nine thousand, two hundred seventy-two".