23676840049 has 4 divisors (see below), whose sum is σ = 25069595364. Its totient is φ = 22284084736.

The previous prime is 23676840037. The next prime is 23676840097. The reversal of 23676840049 is 94004867632.

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 22124480049 + 1552360000 = 148743^2 + 39400^2 .

It is a cyclic number.

It is not a de Polignac number, because 23676840049 - 2⁵ = 23676840017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23676839984 and 23676840011.

It is not an unprimeable number, because it can be changed into a prime (23676840449) 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, 696377632 + ... + 696377665.

It is an arithmetic number, because the mean of its divisors is an integer number (6267398841).

Almost surely, 2^23676840049 is an apocalyptic number.

It is an amenable number.

23676840049 is a deficient number, since it is larger than the sum of its proper divisors (1392755315).

23676840049 is a wasteful number, since it uses less digits than its factorization.

23676840049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392755314.

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 23676840049 in words is "twenty-three billion, six hundred seventy-six million, eight hundred forty thousand, forty-nine".