24790998857 has 2 divisors, whose sum is σ = 24790998858. Its totient is φ = 24790998856.

The previous prime is 24790998829. The next prime is 24790999001. The reversal of 24790998857 is 75889909742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13854231616 + 10936767241 = 117704^2 + 104579^2 .

It is a cyclic number.

It is not a de Polignac number, because 24790998857 - 2³⁰ = 23717257033 is a prime.

It is a super-2 number, since 2×24790998857² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (24790998157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12395499428 + 12395499429.

It is an arithmetic number, because the mean of its divisors is an integer number (12395499429).

Almost surely, 2^24790998857 is an apocalyptic number.

It is an amenable number.

24790998857 is a deficient number, since it is larger than the sum of its proper divisors (1).

24790998857 is an equidigital number, since it uses as much as digits as its factorization.

24790998857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91445760, while the sum is 68.

The spelling of 24790998857 in words is "twenty-four billion, seven hundred ninety million, nine hundred ninety-eight thousand, eight hundred fifty-seven".