23477708669 has 4 divisors (see below), whose sum is σ = 24287284860. Its totient is φ = 22668132480.

The previous prime is 23477708651. The next prime is 23477708677. The reversal of 23477708669 is 96680777432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19576207225 + 3901501444 = 139915^2 + 62462^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23477708669 is a prime.

It is a super-2 number, since 2×23477708669² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23477702669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404788052 + ... + 404788109.

It is an arithmetic number, because the mean of its divisors is an integer number (6071821215).

Almost surely, 2^23477708669 is an apocalyptic number.

23477708669 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

23477708669 is a deficient number, since it is larger than the sum of its proper divisors (809576191).

23477708669 is an equidigital number, since it uses as much as digits as its factorization.

23477708669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809576190.

The product of its (nonzero) digits is 21337344, while the sum is 59.

The spelling of 23477708669 in words is "twenty-three billion, four hundred seventy-seven million, seven hundred eight thousand, six hundred sixty-nine".