24640752641 has 2 divisors, whose sum is σ = 24640752642. Its totient is φ = 24640752640.

The previous prime is 24640752613. The next prime is 24640752691. The reversal of 24640752641 is 14625704642.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16481424400 + 8159328241 = 128380^2 + 90329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24640752641 is a prime.

It is not a weakly prime, because it can be changed into another prime (24640752601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12320376320 + 12320376321.

It is an arithmetic number, because the mean of its divisors is an integer number (12320376321).

Almost surely, 2^24640752641 is an apocalyptic number.

It is an amenable number.

24640752641 is a deficient number, since it is larger than the sum of its proper divisors (1).

24640752641 is an equidigital number, since it uses as much as digits as its factorization.

24640752641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 24640752641 in words is "twenty-four billion, six hundred forty million, seven hundred fifty-two thousand, six hundred forty-one".