23467777789 has 4 divisors (see below), whose sum is σ = 24848235324. Its totient is φ = 22087320256.

The previous prime is 23467777777. The next prime is 23467777807. The reversal of 23467777789 is 98777776432.

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 8836940025 + 14630837764 = 94005^2 + 120958^2 .

It is a cyclic number.

It is not a de Polignac number, because 23467777789 - 2²⁵ = 23434223357 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23467777709) 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, 690228742 + ... + 690228775.

It is an arithmetic number, because the mean of its divisors is an integer number (6212058831).

Almost surely, 2^23467777789 is an apocalyptic number.

It is an amenable number.

23467777789 is a deficient number, since it is larger than the sum of its proper divisors (1380457535).

23467777789 is a wasteful number, since it uses less digits than its factorization.

23467777789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380457534.

The product of its digits is 174254976, while the sum is 67.

The spelling of 23467777789 in words is "twenty-three billion, four hundred sixty-seven million, seven hundred seventy-seven thousand, seven hundred eighty-nine".