78894706695 has 24 divisors (see below), whose sum is σ = 146840761584. Its totient is φ = 36066151296.

The previous prime is 78894706679. The next prime is 78894706729. The reversal of 78894706695 is 59660749887.

It is not a de Polignac number, because 78894706695 - 2⁴ = 78894706679 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 53669134 + ... + 53670603.

It is an arithmetic number, because the mean of its divisors is an integer number (6118365066).

Almost surely, 2^78894706695 is an apocalyptic number.

78894706695 is a deficient number, since it is larger than the sum of its proper divisors (67946054889).

78894706695 is a wasteful number, since it uses less digits than its factorization.

78894706695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107339759 (or 107339752 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 69.

The spelling of 78894706695 in words is "seventy-eight billion, eight hundred ninety-four million, seven hundred six thousand, six hundred ninety-five".