23782478269 has 4 divisors (see below), whose sum is σ = 25944521760. Its totient is φ = 21620434780.

The previous prime is 23782478257. The next prime is 23782478281. The reversal of 23782478269 is 96287428732.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (23782478257) and next prime (23782478281).

It is a cyclic number.

It is not a de Polignac number, because 23782478269 - 2²⁵ = 23748923837 is a prime.

It is a super-2 number, since 2×23782478269² (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 (23782478299) 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, 1081021729 + ... + 1081021750.

It is an arithmetic number, because the mean of its divisors is an integer number (6486130440).

Almost surely, 2^23782478269 is an apocalyptic number.

It is an amenable number.

23782478269 is a deficient number, since it is larger than the sum of its proper divisors (2162043491).

23782478269 is a wasteful number, since it uses less digits than its factorization.

23782478269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162043490.

The product of its digits is 16257024, while the sum is 58.

The spelling of 23782478269 in words is "twenty-three billion, seven hundred eighty-two million, four hundred seventy-eight thousand, two hundred sixty-nine".