72073231774 has 8 divisors (see below), whose sum is σ = 108961106688. Its totient is φ = 35752862880.

The previous prime is 72073231757. The next prime is 72073231781. The reversal of 72073231774 is 47713237027.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 72073231774.

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, 141876187 + ... + 141876694.

It is an arithmetic number, because the mean of its divisors is an integer number (13620138336).

Almost surely, 2^72073231774 is an apocalyptic number.

72073231774 is a deficient number, since it is larger than the sum of its proper divisors (36887874914).

72073231774 is a wasteful number, since it uses less digits than its factorization.

72073231774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283753010.

The product of its (nonzero) digits is 345744, while the sum is 43.

The spelling of 72073231774 in words is "seventy-two billion, seventy-three million, two hundred thirty-one thousand, seven hundred seventy-four".