24691417081 has 2 divisors, whose sum is σ = 24691417082. Its totient is φ = 24691417080.

The previous prime is 24691417067. The next prime is 24691417087. The reversal of 24691417081 is 18071419642.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23902706025 + 788711056 = 154605^2 + 28084^2 .

It is a cyclic number.

It is not a de Polignac number, because 24691417081 - 2¹¹ = 24691415033 is a prime.

It is a super-2 number, since 2×24691417081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (24691417087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12345708540 + 12345708541.

It is an arithmetic number, because the mean of its divisors is an integer number (12345708541).

Almost surely, 2^24691417081 is an apocalyptic number.

It is an amenable number.

24691417081 is a deficient number, since it is larger than the sum of its proper divisors (1).

24691417081 is an equidigital number, since it uses as much as digits as its factorization.

24691417081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 24691417081 in words is "twenty-four billion, six hundred ninety-one million, four hundred seventeen thousand, eighty-one".