72109444330 has 32 divisors (see below), whose sum is σ = 161824832640. Its totient is φ = 22475670720.

The previous prime is 72109444307. The next prime is 72109444349. The reversal of 72109444330 is 3344490127.

It is a self number, because there is not a number n which added to its sum of digits gives 72109444330.

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 15 ways as a sum of consecutive naturals, for example, 46823545 + ... + 46825084.

It is an arithmetic number, because the mean of its divisors is an integer number (5057026020).

Almost surely, 2^72109444330 is an apocalyptic number.

72109444330 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72109444330 is an abundant number, since it is smaller than the sum of its proper divisors (89715388310).

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

72109444330 is a wasteful number, since it uses less digits than its factorization.

72109444330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93648654.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 72109444330 in words is "seventy-two billion, one hundred nine million, four hundred forty-four thousand, three hundred thirty".