23824642757 has 2 divisors, whose sum is σ = 23824642758. Its totient is φ = 23824642756.

The previous prime is 23824642739. The next prime is 23824642783. The reversal of 23824642757 is 75724642832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22442736481 + 1381906276 = 149809^2 + 37174^2 .

It is a cyclic number.

It is not a de Polignac number, because 23824642757 - 2³⁰ = 22750900933 is a prime.

It is a super-2 number, since 2×23824642757² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23824642717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11912321378 + 11912321379.

It is an arithmetic number, because the mean of its divisors is an integer number (11912321379).

Almost surely, 2^23824642757 is an apocalyptic number.

It is an amenable number.

23824642757 is a deficient number, since it is larger than the sum of its proper divisors (1).

23824642757 is an equidigital number, since it uses as much as digits as its factorization.

23824642757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4515840, while the sum is 50.

The spelling of 23824642757 in words is "twenty-three billion, eight hundred twenty-four million, six hundred forty-two thousand, seven hundred fifty-seven".