79143434239 has 2 divisors, whose sum is σ = 79143434240. Its totient is φ = 79143434238.

The previous prime is 79143434191. The next prime is 79143434257. The reversal of 79143434239 is 93243434197.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (93243434197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79143434239 - 2¹⁷ = 79143303167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79143434192 and 79143434201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79143494239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39571717119 + 39571717120.

It is an arithmetic number, because the mean of its divisors is an integer number (39571717120).

Almost surely, 2^79143434239 is an apocalyptic number.

79143434239 is a deficient number, since it is larger than the sum of its proper divisors (1).

79143434239 is an equidigital number, since it uses as much as digits as its factorization.

79143434239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 49.

The spelling of 79143434239 in words is "seventy-nine billion, one hundred forty-three million, four hundred thirty-four thousand, two hundred thirty-nine".