45897744720 has 80 divisors (see below), whose sum is σ = 145310342400. Its totient is φ = 11978982912.

The previous prime is 45897744707. The next prime is 45897744721. The reversal of 45897744720 is 2744779854.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45897744721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2023195 + ... + 2045754.

It is an arithmetic number, because the mean of its divisors is an integer number (1816379280).

Almost surely, 2^45897744720 is an apocalyptic number.

45897744720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45897744720 is an abundant number, since it is smaller than the sum of its proper divisors (99412597680).

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

45897744720 is a wasteful number, since it uses less digits than its factorization.

45897744720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069012 (or 4069006 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 57.

The spelling of 45897744720 in words is "forty-five billion, eight hundred ninety-seven million, seven hundred forty-four thousand, seven hundred twenty".