72599980194 has 96 divisors (see below), whose sum is σ = 187721524224. Its totient is φ = 19826817120.

The previous prime is 72599980183. The next prime is 72599980223. The reversal of 72599980194 is 49108999527.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4428657 + ... + 4445019.

It is an arithmetic number, because the mean of its divisors is an integer number (1955432544).

Almost surely, 2^72599980194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72599980194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93860762112).

72599980194 is an abundant number, since it is smaller than the sum of its proper divisors (115121544030).

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

72599980194 is a wasteful number, since it uses less digits than its factorization.

72599980194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17932 (or 17929 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 63.

The spelling of 72599980194 in words is "seventy-two billion, five hundred ninety-nine million, nine hundred eighty thousand, one hundred ninety-four".