78179512903 has 2 divisors, whose sum is σ = 78179512904. Its totient is φ = 78179512902.

The previous prime is 78179512847. The next prime is 78179512981. The reversal of 78179512903 is 30921597187.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78179512903 - 2⁹ = 78179512391 is a prime.

It is a super-2 number, since 2×78179512903² (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 (78179512003) 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, 39089756451 + 39089756452.

It is an arithmetic number, because the mean of its divisors is an integer number (39089756452).

Almost surely, 2^78179512903 is an apocalyptic number.

78179512903 is a deficient number, since it is larger than the sum of its proper divisors (1).

78179512903 is an equidigital number, since it uses as much as digits as its factorization.

78179512903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 52.

The spelling of 78179512903 in words is "seventy-eight billion, one hundred seventy-nine million, five hundred twelve thousand, nine hundred three".