42739310279 has 2 divisors, whose sum is σ = 42739310280. Its totient is φ = 42739310278.

The previous prime is 42739310249. The next prime is 42739310281. The reversal of 42739310279 is 97201393724.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42739310279 is a prime.

Together with 42739310281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42739310209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21369655139 + 21369655140.

It is an arithmetic number, because the mean of its divisors is an integer number (21369655140).

Almost surely, 2^42739310279 is an apocalyptic number.

42739310279 is a deficient number, since it is larger than the sum of its proper divisors (1).

42739310279 is an equidigital number, since it uses as much as digits as its factorization.

42739310279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 47.

The spelling of 42739310279 in words is "forty-two billion, seven hundred thirty-nine million, three hundred ten thousand, two hundred seventy-nine".