78279413159 has 2 divisors, whose sum is σ = 78279413160. Its totient is φ = 78279413158.

The previous prime is 78279413143. The next prime is 78279413183. The reversal of 78279413159 is 95131497287.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78279413159 - 2⁴ = 78279413143 is a prime.

It is a super-2 number, since 2×78279413159² (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 (78279413659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39139706579 + 39139706580.

It is an arithmetic number, because the mean of its divisors is an integer number (39139706580).

Almost surely, 2^78279413159 is an apocalyptic number.

78279413159 is a deficient number, since it is larger than the sum of its proper divisors (1).

78279413159 is an equidigital number, since it uses as much as digits as its factorization.

78279413159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 56.

The spelling of 78279413159 in words is "seventy-eight billion, two hundred seventy-nine million, four hundred thirteen thousand, one hundred fifty-nine".