79516768861 has 8 divisors (see below), whose sum is σ = 81087220800. Its totient is φ = 77958830880.

The previous prime is 79516768819. The next prime is 79516768901. The reversal of 79516768861 is 16886761597.

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 79516768861 - 2¹⁷ = 79516637789 is a prime.

It is a super-3 number, since 3×79516768861³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79516768793 and 79516768802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79516768361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3115656 + ... + 3141073.

It is an arithmetic number, because the mean of its divisors is an integer number (10135902600).

Almost surely, 2^79516768861 is an apocalyptic number.

79516768861 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

79516768861 is the 126109-th centered decagonal number.

It is an amenable number.

79516768861 is a deficient number, since it is larger than the sum of its proper divisors (1570451939).

79516768861 is a wasteful number, since it uses less digits than its factorization.

79516768861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6256979.

The product of its digits is 30481920, while the sum is 64.

The spelling of 79516768861 in words is "seventy-nine billion, five hundred sixteen million, seven hundred sixty-eight thousand, eight hundred sixty-one".