45645631272 has 96 divisors (see below), whose sum is σ = 133776377280. Its totient is φ = 14553665280.

The previous prime is 45645631271. The next prime is 45645631303. The reversal of 45645631272 is 27213654654.

45645631272 is a `hidden beast` number, since 4 + 5 + 6 + 4 + 5 + 631 + 2 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (45645631271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 465729 + ... + 555152.

It is an arithmetic number, because the mean of its divisors is an integer number (1393503930).

Almost surely, 2^45645631272 is an apocalyptic number.

It is an amenable number.

45645631272 is an abundant number, since it is smaller than the sum of its proper divisors (88130746008).

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

45645631272 is a wasteful number, since it uses less digits than its factorization.

45645631272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020925 (or 1020909 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The spelling of 45645631272 in words is "forty-five billion, six hundred forty-five million, six hundred thirty-one thousand, two hundred seventy-two".