78796779307 has 8 divisors (see below), whose sum is σ = 79641890496. Its totient is φ = 77952337152.

The previous prime is 78796779289. The next prime is 78796779323. The reversal of 78796779307 is 70397769787.

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 78796779307 - 2¹⁹ = 78796255019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78796779337) 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, 71373 + ... + 403345.

It is an arithmetic number, because the mean of its divisors is an integer number (9955236312).

Almost surely, 2^78796779307 is an apocalyptic number.

78796779307 is a deficient number, since it is larger than the sum of its proper divisors (845111189).

78796779307 is a wasteful number, since it uses less digits than its factorization.

78796779307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334517.

The product of its (nonzero) digits is 196036848, while the sum is 70.

The spelling of 78796779307 in words is "seventy-eight billion, seven hundred ninety-six million, seven hundred seventy-nine thousand, three hundred seven".