24496780261 has 2 divisors, whose sum is σ = 24496780262. Its totient is φ = 24496780260.

The previous prime is 24496780219. The next prime is 24496780267. The reversal of 24496780261 is 16208769442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24340680225 + 156100036 = 156015^2 + 12494^2 .

It is a cyclic number.

It is not a de Polignac number, because 24496780261 - 2¹¹ = 24496778213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24496780267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12248390130 + 12248390131.

It is an arithmetic number, because the mean of its divisors is an integer number (12248390131).

Almost surely, 2^24496780261 is an apocalyptic number.

It is an amenable number.

24496780261 is a deficient number, since it is larger than the sum of its proper divisors (1).

24496780261 is an equidigital number, since it uses as much as digits as its factorization.

24496780261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 24496780261 in words is "twenty-four billion, four hundred ninety-six million, seven hundred eighty thousand, two hundred sixty-one".