24991757459 has 2 divisors, whose sum is σ = 24991757460. Its totient is φ = 24991757458.

The previous prime is 24991757449. The next prime is 24991757507. The reversal of 24991757459 is 95475719942.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24991757459 is a prime.

It is not a weakly prime, because it can be changed into another prime (24991757449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12495878729 + 12495878730.

It is an arithmetic number, because the mean of its divisors is an integer number (12495878730).

Almost surely, 2^24991757459 is an apocalyptic number.

24991757459 is a deficient number, since it is larger than the sum of its proper divisors (1).

24991757459 is an equidigital number, since it uses as much as digits as its factorization.

24991757459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28576800, while the sum is 62.

The spelling of 24991757459 in words is "twenty-four billion, nine hundred ninety-one million, seven hundred fifty-seven thousand, four hundred fifty-nine".