72253866894 has 16 divisors (see below), whose sum is σ = 157644800640. Its totient is φ = 21895111160.

The previous prime is 72253866829. The next prime is 72253866913. The reversal of 72253866894 is 49866835227.

It is a super-2 number, since 2×72253866894² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

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, 547377714 + ... + 547377845.

It is an arithmetic number, because the mean of its divisors is an integer number (9852800040).

Almost surely, 2^72253866894 is an apocalyptic number.

72253866894 is an abundant number, since it is smaller than the sum of its proper divisors (85390933746).

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

72253866894 is a wasteful number, since it uses less digits than its factorization.

72253866894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094755575.

The product of its digits is 34836480, while the sum is 60.

The spelling of 72253866894 in words is "seventy-two billion, two hundred fifty-three million, eight hundred sixty-six thousand, eight hundred ninety-four".