75193389816 has 32 divisors (see below), whose sum is σ = 188303754240. Its totient is φ = 25021759328.

The previous prime is 75193389787. The next prime is 75193389839. The reversal of 75193389816 is 61898339157.

It is a self number, because there is not a number n which added to its sum of digits gives 75193389816.

It is a congruent number.

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, 2654616 + ... + 2682791.

It is an arithmetic number, because the mean of its divisors is an integer number (5884492320).

Almost surely, 2^75193389816 is an apocalyptic number.

It is an amenable number.

75193389816 is an abundant number, since it is smaller than the sum of its proper divisors (113110364424).

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

75193389816 is a wasteful number, since it uses less digits than its factorization.

75193389816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5338003 (or 5337999 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 60.

The spelling of 75193389816 in words is "seventy-five billion, one hundred ninety-three million, three hundred eighty-nine thousand, eight hundred sixteen".