79308421847 has 8 divisors (see below), whose sum is σ = 79390945200. Its totient is φ = 79225945344.

The previous prime is 79308421793. The next prime is 79308421861. The reversal of 79308421847 is 74812480397.

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 79308421847 - 2¹⁸ = 79308159703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79308421747) 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, 4082804 + ... + 4102182.

It is an arithmetic number, because the mean of its divisors is an integer number (9923868150).

Almost surely, 2^79308421847 is an apocalyptic number.

79308421847 is a deficient number, since it is larger than the sum of its proper divisors (82523353).

79308421847 is a wasteful number, since it uses less digits than its factorization.

79308421847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23425.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 79308421847 in words is "seventy-nine billion, three hundred eight million, four hundred twenty-one thousand, eight hundred forty-seven".