72240568902 has 32 divisors (see below), whose sum is σ = 160782796800. Its totient is φ = 24042959784.

The previous prime is 72240568891. The next prime is 72240568993. The reversal of 72240568902 is 20986504227.

It is a super-3 number, since 3×72240568902³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 998902 + ... + 1068777.

It is an arithmetic number, because the mean of its divisors is an integer number (5024462400).

Almost surely, 2^72240568902 is an apocalyptic number.

72240568902 is an abundant number, since it is smaller than the sum of its proper divisors (88542227898).

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

72240568902 is a wasteful number, since it uses less digits than its factorization.

72240568902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068337 (or 2068331 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 72240568902 in words is "seventy-two billion, two hundred forty million, five hundred sixty-eight thousand, nine hundred two".