75157323856 has 20 divisors (see below), whose sum is σ = 153281384800. Its totient is φ = 35600837472.

The previous prime is 75157323827. The next prime is 75157323877. The reversal of 75157323856 is 65832375157.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123613716 + ... + 123614323.

It is an arithmetic number, because the mean of its divisors is an integer number (7664069240).

Almost surely, 2^75157323856 is an apocalyptic number.

75157323856 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

75157323856 is an abundant number, since it is smaller than the sum of its proper divisors (78124060944).

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

75157323856 is a wasteful number, since it uses less digits than its factorization.

75157323856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247228066 (or 247228060 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 52.

The spelling of 75157323856 in words is "seventy-five billion, one hundred fifty-seven million, three hundred twenty-three thousand, eight hundred fifty-six".