78936171467 has 2 divisors, whose sum is σ = 78936171468. Its totient is φ = 78936171466.

The previous prime is 78936171437. The next prime is 78936171493. The reversal of 78936171467 is 76417163987.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (76417163987) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78936171467 - 2⁸ = 78936171211 is a prime.

It is not a weakly prime, because it can be changed into another prime (78936171427) by changing a digit.

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 as a sum of consecutive naturals, namely, 39468085733 + 39468085734.

It is an arithmetic number, because the mean of its divisors is an integer number (39468085734).

Almost surely, 2^78936171467 is an apocalyptic number.

78936171467 is a deficient number, since it is larger than the sum of its proper divisors (1).

78936171467 is an equidigital number, since it uses as much as digits as its factorization.

78936171467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10668672, while the sum is 59.

The spelling of 78936171467 in words is "seventy-eight billion, nine hundred thirty-six million, one hundred seventy-one thousand, four hundred sixty-seven".