79638786401 has 8 divisors (see below), whose sum is σ = 82197385440. Its totient is φ = 77120480448.

The previous prime is 79638786323. The next prime is 79638786431. The reversal of 79638786401 is 10468783697.

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 79638786401 - 2¹⁸ = 79638524257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79638786431) 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, 10069256 + ... + 10077161.

It is an arithmetic number, because the mean of its divisors is an integer number (10274673180).

Almost surely, 2^79638786401 is an apocalyptic number.

It is an amenable number.

79638786401 is a deficient number, since it is larger than the sum of its proper divisors (2558599039).

79638786401 is a wasteful number, since it uses less digits than its factorization.

79638786401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20146543.

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 79638786401 in words is "seventy-nine billion, six hundred thirty-eight million, seven hundred eighty-six thousand, four hundred one".