38859793721 has 8 divisors (see below), whose sum is σ = 44818635840. Its totient is φ = 33002812368.

The previous prime is 38859793699. The next prime is 38859793751. The reversal of 38859793721 is 12739795883.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38859793721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38859793751) 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, 25464371 + ... + 25465896.

It is an arithmetic number, because the mean of its divisors is an integer number (5602329480).

Almost surely, 2^38859793721 is an apocalyptic number.

It is an amenable number.

38859793721 is a deficient number, since it is larger than the sum of its proper divisors (5958842119).

38859793721 is a wasteful number, since it uses less digits than its factorization.

38859793721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50930383.

The product of its digits is 22861440, while the sum is 62.

The spelling of 38859793721 in words is "thirty-eight billion, eight hundred fifty-nine million, seven hundred ninety-three thousand, seven hundred twenty-one".