78833917679 has 16 divisors (see below), whose sum is σ = 87608926080. Its totient is φ = 70334916960.

The previous prime is 78833917667. The next prime is 78833917691. The reversal of 78833917679 is 97671933887.

It is an interprime number because it is at equal distance from previous prime (78833917667) and next prime (78833917691).

It is not a de Polignac number, because 78833917679 - 2¹⁶ = 78833852143 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 (78833917609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569 + ... + 397074.

It is an arithmetic number, because the mean of its divisors is an integer number (5475557880).

Almost surely, 2^78833917679 is an apocalyptic number.

78833917679 is a deficient number, since it is larger than the sum of its proper divisors (8775008401).

78833917679 is a wasteful number, since it uses less digits than its factorization.

78833917679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397990.

The product of its digits is 96018048, while the sum is 68.

The spelling of 78833917679 in words is "seventy-eight billion, eight hundred thirty-three million, nine hundred seventeen thousand, six hundred seventy-nine".