42069831239 has 2 divisors, whose sum is σ = 42069831240. Its totient is φ = 42069831238.

The previous prime is 42069831203. The next prime is 42069831247. The reversal of 42069831239 is 93213896024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42069831239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42069831193 and 42069831202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42069831299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21034915619 + 21034915620.

It is an arithmetic number, because the mean of its divisors is an integer number (21034915620).

Almost surely, 2^42069831239 is an apocalyptic number.

42069831239 is a deficient number, since it is larger than the sum of its proper divisors (1).

42069831239 is an equidigital number, since it uses as much as digits as its factorization.

42069831239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 42069831239 in words is "forty-two billion, sixty-nine million, eight hundred thirty-one thousand, two hundred thirty-nine".