23649605669 has 2 divisors, whose sum is σ = 23649605670. Its totient is φ = 23649605668.

The previous prime is 23649605587. The next prime is 23649605689. The reversal of 23649605669 is 96650694632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13176744100 + 10472861569 = 114790^2 + 102337^2 .

It is a cyclic number.

It is not a de Polignac number, because 23649605669 - 2¹⁶ = 23649540133 is a prime.

It is a super-2 number, since 2×23649605669² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23649605689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11824802834 + 11824802835.

It is an arithmetic number, because the mean of its divisors is an integer number (11824802835).

Almost surely, 2^23649605669 is an apocalyptic number.

It is an amenable number.

23649605669 is a deficient number, since it is larger than the sum of its proper divisors (1).

23649605669 is an equidigital number, since it uses as much as digits as its factorization.

23649605669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12597120, while the sum is 56.

The spelling of 23649605669 in words is "twenty-three billion, six hundred forty-nine million, six hundred five thousand, six hundred sixty-nine".