8475572721000 has 512 divisors, whose sum is σ = 33859962040320. Its totient is φ = 1713557376000.

The previous prime is 8475572720959. The next prime is 8475572721023. The reversal of 8475572721000 is 1272755748.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8051179 + ... + 9042821.

It is an arithmetic number, because the mean of its divisors is an integer number (66132738360).

Almost surely, 2^{8475572721000} 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 8475572721000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16929981020160).

8475572721000 is an abundant number, since it is smaller than the sum of its proper divisors (25384389319320).

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

8475572721000 is a wasteful number, since it uses less digits than its factorization.

8475572721000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991722 (or 991708 counting only the distinct ones).

The product of its (nonzero) digits is 1097600, while the sum is 48.

The spelling of 8475572721000 in words is "eight trillion, four hundred seventy-five billion, five hundred seventy-two million, seven hundred twenty-one thousand".