79884388348897 has 32 divisors (see below), whose sum is σ = 91186812896256. Its totient is φ = 69272808369600.

The previous prime is 79884388348883. The next prime is 79884388348939.

It is a happy number.

79884388348897 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 79884388348897 - 2³⁹ = 79334632535009 is a prime.

It is a super-2 number, since 2×79884388348897² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79884388348997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1507140798 + ... + 1507193800.

It is an arithmetic number, because the mean of its divisors is an integer number (2849587903008).

Almost surely, 2^{79884388348897} is an apocalyptic number.

It is an amenable number.

79884388348897 is a deficient number, since it is larger than the sum of its proper divisors (11302424547359).

79884388348897 is a wasteful number, since it uses less digits than its factorization.

79884388348897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69381.

The product of its digits is 149824733184, while the sum is 94.

The spelling of 79884388348897 in words is "seventy-nine trillion, eight hundred eighty-four billion, three hundred eighty-eight million, three hundred forty-eight thousand, eight hundred ninety-seven".