79024543681 has 8 divisors (see below), whose sum is σ = 79218972000. Its totient is φ = 78830260608.

The previous prime is 79024543657. The next prime is 79024543691. The reversal of 79024543681 is 18634542097.

It is a happy number.

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 79024543681 - 2⁷ = 79024543553 is a prime.

It is a super-2 number, since 2×79024543681² (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 (79024543601) 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 7 ways as a sum of consecutive naturals, for example, 1096305 + ... + 1166161.

It is an arithmetic number, because the mean of its divisors is an integer number (9902371500).

It is a 2-persistent number, because it is pandigital, and so is 2⋅79024543681 = 158049087362, but 3⋅79024543681 = 237073631043 is not.

Almost surely, 2^79024543681 is an apocalyptic number.

79024543681 is the 177792-nd centered pentagonal number.

It is an amenable number.

79024543681 is a deficient number, since it is larger than the sum of its proper divisors (194428319).

79024543681 is a wasteful number, since it uses less digits than its factorization.

79024543681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72623.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 79024543681 in words is "seventy-nine billion, twenty-four million, five hundred forty-three thousand, six hundred eighty-one".