72225111894 has 24 divisors (see below), whose sum is σ = 156416516712. Its totient is φ = 22223111040.

The previous prime is 72225111883. The next prime is 72225111913. The reversal of 72225111894 is 49811152227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35612947 + ... + 35614974.

It is an arithmetic number, because the mean of its divisors is an integer number (6517354863).

Almost surely, 2^72225111894 is an apocalyptic number.

72225111894 is an abundant number, since it is smaller than the sum of its proper divisors (84191404818).

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

72225111894 is a wasteful number, since it uses less digits than its factorization.

72225111894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71227952 (or 71227939 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The spelling of 72225111894 in words is "seventy-two billion, two hundred twenty-five million, one hundred eleven thousand, eight hundred ninety-four".