45550780992 has 168 divisors, whose sum is σ = 136293880320. Its totient is φ = 14528194560.

The previous prime is 45550780967. The next prime is 45550781021. The reversal of 45550780992 is 29908705554.

45550780992 is a `hidden beast` number, since 4 + 5 + 550 + 7 + 80 + 9 + 9 + 2 = 666.

It is a super-2 number, since 2×45550780992² (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 (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1574853 + ... + 1603515.

Almost surely, 2^45550780992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45550780992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68146940160).

45550780992 is an abundant number, since it is smaller than the sum of its proper divisors (90743099328).

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

45550780992 is a wasteful number, since it uses less digits than its factorization.

45550780992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28801 (or 28788 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 54.

The spelling of 45550780992 in words is "forty-five billion, five hundred fifty million, seven hundred eighty thousand, nine hundred ninety-two".