23689440833 has 2 divisors, whose sum is σ = 23689440834. Its totient is φ = 23689440832.

The previous prime is 23689440821. The next prime is 23689440871. The reversal of 23689440833 is 33804498632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21745336369 + 1944104464 = 147463^2 + 44092^2 .

It is a cyclic number.

It is not a de Polignac number, because 23689440833 - 2²⁴ = 23672663617 is a prime.

It is a super-2 number, since 2×23689440833² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23689440133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11844720416 + 11844720417.

It is an arithmetic number, because the mean of its divisors is an integer number (11844720417).

Almost surely, 2^23689440833 is an apocalyptic number.

It is an amenable number.

23689440833 is a deficient number, since it is larger than the sum of its proper divisors (1).

23689440833 is an equidigital number, since it uses as much as digits as its factorization.

23689440833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 50.

The spelling of 23689440833 in words is "twenty-three billion, six hundred eighty-nine million, four hundred forty thousand, eight hundred thirty-three".