75172033990 has 16 divisors (see below), whose sum is σ = 135404507952. Its totient is φ = 30047736544.

The previous prime is 75172033973. The next prime is 75172034011. The reversal of 75172033990 is 9933027157.

It is a self number, because there is not a number n which added to its sum of digits gives 75172033990.

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, 2619649 + ... + 2648188.

It is an arithmetic number, because the mean of its divisors is an integer number (8462781747).

Almost surely, 2^75172033990 is an apocalyptic number.

75172033990 is a deficient number, since it is larger than the sum of its proper divisors (60232473962).

75172033990 is a wasteful number, since it uses less digits than its factorization.

75172033990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5269271.

The product of its (nonzero) digits is 357210, while the sum is 46.

The spelling of 75172033990 in words is "seventy-five billion, one hundred seventy-two million, thirty-three thousand, nine hundred ninety".