42202942279 has 2 divisors, whose sum is σ = 42202942280. Its totient is φ = 42202942278.

The previous prime is 42202942277. The next prime is 42202942339. The reversal of 42202942279 is 97224920224.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42202942279 - 2¹ = 42202942277 is a prime.

Together with 42202942277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42202942277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21101471139 + 21101471140.

It is an arithmetic number, because the mean of its divisors is an integer number (21101471140).

Almost surely, 2^42202942279 is an apocalyptic number.

42202942279 is a deficient number, since it is larger than the sum of its proper divisors (1).

42202942279 is an equidigital number, since it uses as much as digits as its factorization.

42202942279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 42202942279 in words is "forty-two billion, two hundred two million, nine hundred forty-two thousand, two hundred seventy-nine".