2542398577 has 2 divisors, whose sum is σ = 2542398578. Its totient is φ = 2542398576.

The previous prime is 2542398557. The next prime is 2542398611. The reversal of 2542398577 is 7758932452.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2053811761 + 488586816 = 45319^2 + 22104^2 .

It is a cyclic number.

It is not a de Polignac number, because 2542398577 - 2²³ = 2534009969 is a prime.

It is not a weakly prime, because it can be changed into another prime (2542398557) 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, 1271199288 + 1271199289.

It is an arithmetic number, because the mean of its divisors is an integer number (1271199289).

Almost surely, 2^2542398577 is an apocalyptic number.

It is an amenable number.

2542398577 is a deficient number, since it is larger than the sum of its proper divisors (1).

2542398577 is an equidigital number, since it uses as much as digits as its factorization.

2542398577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4233600, while the sum is 52.

The square root of 2542398577 is about 50422.2032144570. The cubic root of 2542398577 is about 1364.8383349621.

The spelling of 2542398577 in words is "two billion, five hundred forty-two million, three hundred ninety-eight thousand, five hundred seventy-seven".