24109972681 has 2 divisors, whose sum is σ = 24109972682. Its totient is φ = 24109972680.

The previous prime is 24109972673. The next prime is 24109972687. The reversal of 24109972681 is 18627990142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23800775625 + 309197056 = 154275^2 + 17584^2 .

It is a cyclic number.

It is not a de Polignac number, because 24109972681 - 2³ = 24109972673 is a prime.

It is a super-2 number, since 2×24109972681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (24109972687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12054986340 + 12054986341.

It is an arithmetic number, because the mean of its divisors is an integer number (12054986341).

Almost surely, 2^24109972681 is an apocalyptic number.

It is an amenable number.

24109972681 is a deficient number, since it is larger than the sum of its proper divisors (1).

24109972681 is an equidigital number, since it uses as much as digits as its factorization.

24109972681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 24109972681 in words is "twenty-four billion, one hundred nine million, nine hundred seventy-two thousand, six hundred eighty-one".