79627681193 has 4 divisors (see below), whose sum is σ = 79634322768. Its totient is φ = 79621039620.

The previous prime is 79627681123. The next prime is 79627681213. The reversal of 79627681193 is 39118672697.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79627681193 - 2¹⁰ = 79627680169 is a prime.

It is a super-2 number, since 2×79627681193² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79627681123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3302771 + ... + 3326792.

It is an arithmetic number, because the mean of its divisors is an integer number (19908580692).

Almost surely, 2^79627681193 is an apocalyptic number.

It is an amenable number.

79627681193 is a deficient number, since it is larger than the sum of its proper divisors (6641575).

79627681193 is a wasteful number, since it uses less digits than its factorization.

79627681193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6641574.

The product of its digits is 6858432, while the sum is 59.

The spelling of 79627681193 in words is "seventy-nine billion, six hundred twenty-seven million, six hundred eighty-one thousand, one hundred ninety-three".