45517072812 has 12 divisors (see below), whose sum is σ = 106206503256. Its totient is φ = 15172357600.

The previous prime is 45517072793. The next prime is 45517072813. The reversal of 45517072812 is 21827071554.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (45517072813) by changing a digit.

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, 1896544689 + ... + 1896544712.

It is an arithmetic number, because the mean of its divisors is an integer number (8850541938).

Almost surely, 2^45517072812 is an apocalyptic number.

It is an amenable number.

45517072812 is an abundant number, since it is smaller than the sum of its proper divisors (60689430444).

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

45517072812 is a wasteful number, since it uses less digits than its factorization.

45517072812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3793089408 (or 3793089406 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The spelling of 45517072812 in words is "forty-five billion, five hundred seventeen million, seventy-two thousand, eight hundred twelve".