75811399872 has 112 divisors (see below), whose sum is σ = 217926330720. Its totient is φ = 23120068608.

The previous prime is 75811399793. The next prime is 75811399891. The reversal of 75811399872 is 27899311857.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147654 + ... + 416442.

It is an arithmetic number, because the mean of its divisors is an integer number (1945770810).

Almost surely, 2^75811399872 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 75811399872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108963165360).

75811399872 is an abundant number, since it is smaller than the sum of its proper divisors (142114930848).

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

75811399872 is a wasteful number, since it uses less digits than its factorization.

75811399872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268930 (or 268920 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 60.

The spelling of 75811399872 in words is "seventy-five billion, eight hundred eleven million, three hundred ninety-nine thousand, eight hundred seventy-two".