23449687261 has 32 divisors (see below), whose sum is σ = 31497984000. Its totient is φ = 16859897280.

The previous prime is 23449687259. The next prime is 23449687297. The reversal of 23449687261 is 16278694432.

It is a cyclic number.

It is not a de Polignac number, because 23449687261 - 2¹ = 23449687259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23449687199 and 23449687208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23449687201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4340640 + ... + 4346038.

It is an arithmetic number, because the mean of its divisors is an integer number (984312000).

Almost surely, 2^23449687261 is an apocalyptic number.

It is an amenable number.

23449687261 is a deficient number, since it is larger than the sum of its proper divisors (8048296739).

23449687261 is a wasteful number, since it uses less digits than its factorization.

23449687261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9769.

The product of its digits is 3483648, while the sum is 52.

The spelling of 23449687261 in words is "twenty-three billion, four hundred forty-nine million, six hundred eighty-seven thousand, two hundred sixty-one".