72865735850 has 24 divisors (see below), whose sum is σ = 136287437760. Its totient is φ = 28983462320.

The previous prime is 72865735843. The next prime is 72865735883. The reversal of 72865735850 is 5853756827.

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, 4061762 + ... + 4079661.

It is an arithmetic number, because the mean of its divisors is an integer number (5678643240).

Almost surely, 2^72865735850 is an apocalyptic number.

72865735850 is a deficient number, since it is larger than the sum of its proper divisors (63421701910).

72865735850 is a wasteful number, since it uses less digits than its factorization.

72865735850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8141614 (or 8141609 counting only the distinct ones).

The product of its (nonzero) digits is 14112000, while the sum is 56.

The spelling of 72865735850 in words is "seventy-two billion, eight hundred sixty-five million, seven hundred thirty-five thousand, eight hundred fifty".