2542322639 has 2 divisors, whose sum is σ = 2542322640. Its totient is φ = 2542322638.

The previous prime is 2542322597. The next prime is 2542322659. The reversal of 2542322639 is 9362232452.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2542322639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2542322659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271161319 + 1271161320.

It is an arithmetic number, because the mean of its divisors is an integer number (1271161320).

Almost surely, 2^2542322639 is an apocalyptic number.

2542322639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2542322639 is an equidigital number, since it uses as much as digits as its factorization.

2542322639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 38.

The square root of 2542322639 is about 50421.4501873954. The cubic root of 2542322639 is about 1364.8247462030.

The spelling of 2542322639 in words is "two billion, five hundred forty-two million, three hundred twenty-two thousand, six hundred thirty-nine".