23605940669 has 4 divisors (see below), whose sum is σ = 23606257980. Its totient is φ = 23605623360.

The previous prime is 23605940663. The next prime is 23605940711. The reversal of 23605940669 is 96604950632.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 23535548569 + 70392100 = 153413^2 + 8390^2 .

It is a cyclic number.

It is not a de Polignac number, because 23605940669 - 2⁴ = 23605940653 is a prime.

It is a super-2 number, since 2×23605940669² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23605940663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19979 + ... + 218199.

It is an arithmetic number, because the mean of its divisors is an integer number (5901564495).

Almost surely, 2^23605940669 is an apocalyptic number.

It is an amenable number.

23605940669 is a deficient number, since it is larger than the sum of its proper divisors (317311).

23605940669 is a wasteful number, since it uses less digits than its factorization.

23605940669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317310.

The product of its (nonzero) digits is 2099520, while the sum is 50.

The spelling of 23605940669 in words is "twenty-three billion, six hundred five million, nine hundred forty thousand, six hundred sixty-nine".