45721710099 has 48 divisors (see below), whose sum is σ = 71902827360. Its totient is φ = 27828403200.

The previous prime is 45721710077. The next prime is 45721710109. The reversal of 45721710099 is 99001712754.

45721710099 is a `hidden beast` number, since 4 + 572 + 1 + 71 + 0 + 0 + 9 + 9 = 666.

It is not a de Polignac number, because 45721710099 - 2²¹ = 45719612947 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (45721710899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17523307 + ... + 17525915.

It is an arithmetic number, because the mean of its divisors is an integer number (1497975570).

Almost surely, 2^45721710099 is an apocalyptic number.

45721710099 is a deficient number, since it is larger than the sum of its proper divisors (26181117261).

45721710099 is a wasteful number, since it uses less digits than its factorization.

45721710099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4212 (or 4209 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The spelling of 45721710099 in words is "forty-five billion, seven hundred twenty-one million, seven hundred ten thousand, ninety-nine".