75728976344 has 16 divisors (see below), whose sum is σ = 162276378000. Its totient is φ = 32455275552.

The previous prime is 75728976341. The next prime is 75728976403. The reversal of 75728976344 is 44367982757.

It is a super-2 number, since 2×75728976344² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75728976341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676151519 + ... + 676151630.

It is an arithmetic number, because the mean of its divisors is an integer number (10142273625).

Almost surely, 2^75728976344 is an apocalyptic number.

It is an amenable number.

75728976344 is an abundant number, since it is smaller than the sum of its proper divisors (86547401656).

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

75728976344 is a wasteful number, since it uses less digits than its factorization.

75728976344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352303162 (or 1352303158 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 62.

The spelling of 75728976344 in words is "seventy-five billion, seven hundred twenty-eight million, nine hundred seventy-six thousand, three hundred forty-four".