78779570095 has 4 divisors (see below), whose sum is σ = 94535484120. Its totient is φ = 63023656072.

The previous prime is 78779570063. The next prime is 78779570117. The reversal of 78779570095 is 59007597787.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78779570095 - 2⁵ = 78779570063 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7877957005 + ... + 7877957014.

It is an arithmetic number, because the mean of its divisors is an integer number (23633871030).

Almost surely, 2^78779570095 is an apocalyptic number.

78779570095 is a deficient number, since it is larger than the sum of its proper divisors (15755914025).

78779570095 is a wasteful number, since it uses less digits than its factorization.

78779570095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15755914024.

The product of its (nonzero) digits is 38896200, while the sum is 64.

The spelling of 78779570095 in words is "seventy-eight billion, seven hundred seventy-nine million, five hundred seventy thousand, ninety-five".