12305647263 has 16 divisors (see below), whose sum is σ = 20193883136. Its totient is φ = 6490890720.

The previous prime is 12305647261. The next prime is 12305647267. The reversal of 12305647263 is 36274650321.

It is not a de Polignac number, because 12305647263 - 2¹ = 12305647261 is a prime.

It is a super-2 number, since 2×12305647263² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305647261) 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, 22537543 + ... + 22538088.

It is an arithmetic number, because the mean of its divisors is an integer number (1262117696).

Almost surely, 2^12305647263 is an apocalyptic number.

12305647263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12305647263 is a deficient number, since it is larger than the sum of its proper divisors (7888235873).

12305647263 is a wasteful number, since it uses less digits than its factorization.

12305647263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45075654.

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 12305647263 in words is "twelve billion, three hundred five million, six hundred forty-seven thousand, two hundred sixty-three".