64475088800 has 144 divisors (see below), whose sum is σ = 162563345280. Its totient is φ = 24956405760.

The previous prime is 64475088749. The next prime is 64475088823. The reversal of 64475088800 is 888057446.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3336767 + ... + 3356033.

It is an arithmetic number, because the mean of its divisors is an integer number (1128912120).

Almost surely, 2^64475088800 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 64475088800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81281672640).

64475088800 is an abundant number, since it is smaller than the sum of its proper divisors (98088256480).

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

64475088800 is a wasteful number, since it uses less digits than its factorization.

64475088800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19423 (or 19410 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 64475088800 in words is "sixty-four billion, four hundred seventy-five million, eighty-eight thousand, eight hundred".