23840187266 has 24 divisors (see below), whose sum is σ = 41748917436. Its totient is φ = 10180326240.

The previous prime is 23840187257. The next prime is 23840187271. The reversal of 23840187266 is 66278104832.

It can be written as a sum of positive squares in 2 ways, for example, as 22973768041 + 866419225 = 151571^2 + 29435^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23840187266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 411965 + ... + 466256.

Almost surely, 2^23840187266 is an apocalyptic number.

23840187266 is a deficient number, since it is larger than the sum of its proper divisors (17908730170).

23840187266 is a wasteful number, since it uses less digits than its factorization.

23840187266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878514 (or 878507 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 23840187266 in words is "twenty-three billion, eight hundred forty million, one hundred eighty-seven thousand, two hundred sixty-six".