78114759479 has 2 divisors, whose sum is σ = 78114759480. Its totient is φ = 78114759478.

The previous prime is 78114759391. The next prime is 78114759557. The reversal of 78114759479 is 97495741187.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78114759479 - 2³² = 73819792183 is a prime.

It is a super-2 number, since 2×78114759479² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78114759179) 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 as a sum of consecutive naturals, namely, 39057379739 + 39057379740.

It is an arithmetic number, because the mean of its divisors is an integer number (39057379740).

Almost surely, 2^78114759479 is an apocalyptic number.

78114759479 is a deficient number, since it is larger than the sum of its proper divisors (1).

78114759479 is an equidigital number, since it uses as much as digits as its factorization.

78114759479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17781120, while the sum is 62.

The spelling of 78114759479 in words is "seventy-eight billion, one hundred fourteen million, seven hundred fifty-nine thousand, four hundred seventy-nine".