23268207649 has 16 divisors (see below), whose sum is σ = 25311214800. Its totient is φ = 21300516864.

The previous prime is 23268207631. The next prime is 23268207653. The reversal of 23268207649 is 94670286232.

It can be written as a sum of positive squares in 8 ways, for example, as 7351862049 + 15916345600 = 85743^2 + 126160^2 .

It is a cyclic number.

It is not a de Polignac number, because 23268207649 - 2⁵ = 23268207617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23268207629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3260317 + ... + 3267445.

It is an arithmetic number, because the mean of its divisors is an integer number (1581950925).

Almost surely, 2^23268207649 is an apocalyptic number.

It is an amenable number.

23268207649 is a deficient number, since it is larger than the sum of its proper divisors (2043007151).

23268207649 is a wasteful number, since it uses less digits than its factorization.

23268207649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12372.

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

The spelling of 23268207649 in words is "twenty-three billion, two hundred sixty-eight million, two hundred seven thousand, six hundred forty-nine".