72296389872 has 180 divisors, whose sum is σ = 249208152336. Its totient is φ = 19441013760.

The previous prime is 72296389853. The next prime is 72296389883. The reversal of 72296389872 is 27898369227.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 181404 + ... + 421307.

Almost surely, 2^72296389872 is an apocalyptic number.

72296389872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

72296389872 is an abundant number, since it is smaller than the sum of its proper divisors (176911762464).

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

72296389872 is a wasteful number, since it uses less digits than its factorization.

72296389872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602756 (or 602740 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 72296389872 in words is "seventy-two billion, two hundred ninety-six million, three hundred eighty-nine thousand, eight hundred seventy-two".