79999120101001 has 4 divisors (see below), whose sum is σ = 83477342714112. Its totient is φ = 76520897487892.

The previous prime is 79999120100987. The next prime is 79999120101037. The reversal of 79999120101001 is 10010102199997.

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 79999120101001 - 2⁵ = 79999120100969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79999120101071) 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, 1739111306521 + ... + 1739111306566.

It is an arithmetic number, because the mean of its divisors is an integer number (20869335678528).

Almost surely, 2^{79999120101001} is an apocalyptic number.

It is an amenable number.

79999120101001 is a deficient number, since it is larger than the sum of its proper divisors (3478222613111).

79999120101001 is a wasteful number, since it uses less digits than its factorization.

79999120101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3478222613110.

The product of its (nonzero) digits is 91854, while the sum is 49.

The spelling of 79999120101001 in words is "seventy-nine trillion, nine hundred ninety-nine billion, one hundred twenty million, one hundred one thousand, one".