75868808736 has 96 divisors (see below), whose sum is σ = 228217385088. Its totient is φ = 21618616320.

The previous prime is 75868808707. The next prime is 75868808747. The reversal of 75868808736 is 63780886857.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×75868808736² (a number of 23 digits) contains 22 as substring.

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, 99316 + ... + 401996.

It is an arithmetic number, because the mean of its divisors is an integer number (2377264428).

Almost surely, 2^75868808736 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 75868808736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114108692544).

75868808736 is an abundant number, since it is smaller than the sum of its proper divisors (152348576352).

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

75868808736 is a wasteful number, since it uses less digits than its factorization.

75868808736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303074 (or 303066 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 66.

The spelling of 75868808736 in words is "seventy-five billion, eight hundred sixty-eight million, eight hundred eight thousand, seven hundred thirty-six".