72871038653 has 8 divisors (see below), whose sum is σ = 83282822400. Its totient is φ = 62459663760.

The previous prime is 72871038649. The next prime is 72871038661. The reversal of 72871038653 is 35683017827.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72871038653 - 2² = 72871038649 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72871038953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618908 + ... + 727178.

It is an arithmetic number, because the mean of its divisors is an integer number (10410352800).

Almost surely, 2^72871038653 is an apocalyptic number.

It is an amenable number.

72871038653 is a deficient number, since it is larger than the sum of its proper divisors (10411783747).

72871038653 is a wasteful number, since it uses less digits than its factorization.

72871038653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204427.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 72871038653 in words is "seventy-two billion, eight hundred seventy-one million, thirty-eight thousand, six hundred fifty-three".