23856549369 has 8 divisors (see below), whose sum is σ = 32408897472. Its totient is φ = 15604283760.

The previous prime is 23856549331. The next prime is 23856549377. The reversal of 23856549369 is 96394565832.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23856549369 - 2⁸ = 23856549113 is a prime.

It is a super-2 number, since 2×23856549369² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23856549329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75020437 + ... + 75020754.

It is an arithmetic number, because the mean of its divisors is an integer number (4051112184).

Almost surely, 2^23856549369 is an apocalyptic number.

It is an amenable number.

23856549369 is a deficient number, since it is larger than the sum of its proper divisors (8552348103).

23856549369 is a wasteful number, since it uses less digits than its factorization.

23856549369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150041247.

The product of its digits is 41990400, while the sum is 60.

The spelling of 23856549369 in words is "twenty-three billion, eight hundred fifty-six million, five hundred forty-nine thousand, three hundred sixty-nine".