78471234279 has 12 divisors (see below), whose sum is σ = 113389525600. Its totient is φ = 52294685184.

The previous prime is 78471234251. The next prime is 78471234287. The reversal of 78471234279 is 97243217487.

78471234279 is a `hidden beast` number, since 78 + 4 + 71 + 234 + 279 = 666.

It is not a de Polignac number, because 78471234279 - 2⁹ = 78471233767 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 (78471234209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1597039 + ... + 1645440.

Almost surely, 2^78471234279 is an apocalyptic number.

78471234279 is a deficient number, since it is larger than the sum of its proper divisors (34918291321).

78471234279 is a wasteful number, since it uses less digits than its factorization.

78471234279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245174 (or 3245171 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 54.

The spelling of 78471234279 in words is "seventy-eight billion, four hundred seventy-one million, two hundred thirty-four thousand, two hundred seventy-nine".