45057673856 has 64 divisors (see below), whose sum is σ = 96724723200. Its totient is φ = 20783692800.

The previous prime is 45057673813. The next prime is 45057673891. The reversal of 45057673856 is 65837675054.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3239525 + ... + 3253403.

It is an arithmetic number, because the mean of its divisors is an integer number (1511323800).

Almost surely, 2^45057673856 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 45057673856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48362361600).

45057673856 is an abundant number, since it is smaller than the sum of its proper divisors (51667049344).

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

45057673856 is a wasteful number, since it uses less digits than its factorization.

45057673856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15857 (or 15845 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 56.

The spelling of 45057673856 in words is "forty-five billion, fifty-seven million, six hundred seventy-three thousand, eight hundred fifty-six".