23042809692989 has 2 divisors, whose sum is σ = 23042809692990. Its totient is φ = 23042809692988.

The previous prime is 23042809692911. The next prime is 23042809692997. The reversal of 23042809692989 is 98929690824032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11942864664025 + 11099945028964 = 3455845^2 + 3331658^2 .

It is a cyclic number.

It is not a de Polignac number, because 23042809692989 - 2²⁰ = 23042808644413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23042809691989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11521404846494 + 11521404846495.

It is an arithmetic number, because the mean of its divisors is an integer number (11521404846495).

Almost surely, 2^{23042809692989} is an apocalyptic number.

It is an amenable number.

23042809692989 is a deficient number, since it is larger than the sum of its proper divisors (1).

23042809692989 is an equidigital number, since it uses as much as digits as its factorization.

23042809692989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241864704, while the sum is 71.

The spelling of 23042809692989 in words is "twenty-three trillion, forty-two billion, eight hundred nine million, six hundred ninety-two thousand, nine hundred eighty-nine".