12388950265 has 4 divisors (see below), whose sum is σ = 14866740324. Its totient is φ = 9911160208.

The previous prime is 12388950257. The next prime is 12388950281. The reversal of 12388950265 is 56205988321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1940226304 + 10448723961 = 44048^2 + 102219^2 .

It is a cyclic number.

It is not a de Polignac number, because 12388950265 - 2³ = 12388950257 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1238895022 + ... + 1238895031.

It is an arithmetic number, because the mean of its divisors is an integer number (3716685081).

Almost surely, 2^12388950265 is an apocalyptic number.

It is an amenable number.

12388950265 is a deficient number, since it is larger than the sum of its proper divisors (2477790059).

12388950265 is an equidigital number, since it uses as much as digits as its factorization.

12388950265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477790058.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 12388950265 in words is "twelve billion, three hundred eighty-eight million, nine hundred fifty thousand, two hundred sixty-five".