24126352561 has 2 divisors, whose sum is σ = 24126352562. Its totient is φ = 24126352560.

The previous prime is 24126352541. The next prime is 24126352631. The reversal of 24126352561 is 16525362142.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13863649536 + 10262703025 = 117744^2 + 101305^2 .

It is a cyclic number.

It is not a de Polignac number, because 24126352561 - 2⁹ = 24126352049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 24126352561.

It is not a weakly prime, because it can be changed into another prime (24126352541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12063176280 + 12063176281.

It is an arithmetic number, because the mean of its divisors is an integer number (12063176281).

Almost surely, 2^24126352561 is an apocalyptic number.

It is an amenable number.

24126352561 is a deficient number, since it is larger than the sum of its proper divisors (1).

24126352561 is an equidigital number, since it uses as much as digits as its factorization.

24126352561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 37.

The spelling of 24126352561 in words is "twenty-four billion, one hundred twenty-six million, three hundred fifty-two thousand, five hundred sixty-one".