45021192899544 has 128 divisors (see below), whose sum is σ = 126317675404800. Its totient is φ = 14856056035200.

The previous prime is 45021192899539. The next prime is 45021192899569. The reversal of 45021192899544 is 44599829112054.

45021192899544 is a `hidden beast` number, since 4 + 5 + 0 + 2 + 1 + 1 + 9 + 2 + 89 + 9 + 544 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136119379 + ... + 136449725.

It is an arithmetic number, because the mean of its divisors is an integer number (986856839100).

Almost surely, 2^{45021192899544} 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 45021192899544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63158837702400).

45021192899544 is an abundant number, since it is smaller than the sum of its proper divisors (81296482505256).

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

45021192899544 is a wasteful number, since it uses less digits than its factorization.

45021192899544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336710 (or 336700 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 63.

The spelling of 45021192899544 in words is "forty-five trillion, twenty-one billion, one hundred ninety-two million, eight hundred ninety-nine thousand, five hundred forty-four".