79839293897 has 16 divisors (see below), whose sum is σ = 87998883840. Its totient is φ = 71833683600.

The previous prime is 79839293837. The next prime is 79839293909.

79839293897 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 79839293897 - 2¹² = 79839289801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79839293837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335372 + ... + 521682.

It is an arithmetic number, because the mean of its divisors is an integer number (5499930240).

Almost surely, 2^79839293897 is an apocalyptic number.

It is an amenable number.

79839293897 is a deficient number, since it is larger than the sum of its proper divisors (8159589943).

79839293897 is a wasteful number, since it uses less digits than its factorization.

79839293897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186724.

The product of its digits is 370355328, while the sum is 74.

The spelling of 79839293897 in words is "seventy-nine billion, eight hundred thirty-nine million, two hundred ninety-three thousand, eight hundred ninety-seven".