75305716612 has 24 divisors (see below), whose sum is σ = 159470930304. Its totient is φ = 30375414912.

The previous prime is 75305716609. The next prime is 75305716667. The reversal of 75305716612 is 21661750357.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79102168 + ... + 79103119.

It is an arithmetic number, because the mean of its divisors is an integer number (6644622096).

Almost surely, 2^75305716612 is an apocalyptic number.

It is an amenable number.

75305716612 is an abundant number, since it is smaller than the sum of its proper divisors (84165213692).

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

75305716612 is a wasteful number, since it uses less digits than its factorization.

75305716612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158205315 (or 158205313 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 43.

The spelling of 75305716612 in words is "seventy-five billion, three hundred five million, seven hundred sixteen thousand, six hundred twelve".