79804367691 has 8 divisors (see below), whose sum is σ = 111032163840. Its totient is φ = 50889741672.

The previous prime is 79804367681. The next prime is 79804367717. The reversal of 79804367691 is 19676340897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79804367691 - 2⁹ = 79804367179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79804367681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578292451 + ... + 578292588.

It is an arithmetic number, because the mean of its divisors is an integer number (13879020480).

Almost surely, 2^79804367691 is an apocalyptic number.

79804367691 is a deficient number, since it is larger than the sum of its proper divisors (31227796149).

79804367691 is a wasteful number, since it uses less digits than its factorization.

79804367691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156585065.

The product of its (nonzero) digits is 13716864, while the sum is 60.

The spelling of 79804367691 in words is "seventy-nine billion, eight hundred four million, three hundred sixty-seven thousand, six hundred ninety-one".