78851432167 has 2 divisors, whose sum is σ = 78851432168. Its totient is φ = 78851432166.

The previous prime is 78851432161. The next prime is 78851432171. The reversal of 78851432167 is 76123415887.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78851432167 - 2³ = 78851432159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78851432161) 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 as a sum of consecutive naturals, namely, 39425716083 + 39425716084.

It is an arithmetic number, because the mean of its divisors is an integer number (39425716084).

Almost surely, 2^78851432167 is an apocalyptic number.

78851432167 is a deficient number, since it is larger than the sum of its proper divisors (1).

78851432167 is an equidigital number, since it uses as much as digits as its factorization.

78851432167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2257920, while the sum is 52.

The spelling of 78851432167 in words is "seventy-eight billion, eight hundred fifty-one million, four hundred thirty-two thousand, one hundred sixty-seven".