24123342557 has 2 divisors, whose sum is σ = 24123342558. Its totient is φ = 24123342556.

The previous prime is 24123342479. The next prime is 24123342587. The reversal of 24123342557 is 75524332142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21370346596 + 2752995961 = 146186^2 + 52469^2 .

It is a cyclic number.

It is not a de Polignac number, because 24123342557 - 2²⁸ = 23854907101 is a prime.

It is a super-2 number, since 2×24123342557² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 24123342557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24123342587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12061671278 + 12061671279.

It is an arithmetic number, because the mean of its divisors is an integer number (12061671279).

Almost surely, 2^24123342557 is an apocalyptic number.

It is an amenable number.

24123342557 is a deficient number, since it is larger than the sum of its proper divisors (1).

24123342557 is an equidigital number, since it uses as much as digits as its factorization.

24123342557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 38.

Adding to 24123342557 its reverse (75524332142), we get a palindrome (99647674699).

The spelling of 24123342557 in words is "twenty-four billion, one hundred twenty-three million, three hundred forty-two thousand, five hundred fifty-seven".