2542124639 has 2 divisors, whose sum is σ = 2542124640. Its totient is φ = 2542124638.

The previous prime is 2542124617. The next prime is 2542124677. The reversal of 2542124639 is 9364212452.

It is an a-pointer prime, because the next prime (2542124677) can be obtained adding 2542124639 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2542124639 - 2²⁰ = 2541076063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2542124609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271062319 + 1271062320.

It is an arithmetic number, because the mean of its divisors is an integer number (1271062320).

Almost surely, 2^2542124639 is an apocalyptic number.

2542124639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2542124639 is an equidigital number, since it uses as much as digits as its factorization.

2542124639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 38.

The square root of 2542124639 is about 50419.4866990928. The cubic root of 2542124639 is about 1364.7893137325.

The spelling of 2542124639 in words is "two billion, five hundred forty-two million, one hundred twenty-four thousand, six hundred thirty-nine".