12906466765 has 4 divisors (see below), whose sum is σ = 15487760124. Its totient is φ = 10325173408.

The previous prime is 12906466687. The next prime is 12906466801. The reversal of 12906466765 is 56766460921.

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 5696928484 + 7209538281 = 75478^2 + 84909^2 .

It is a cyclic number.

It is not a de Polignac number, because 12906466765 - 2¹³ = 12906458573 is a prime.

It is a Duffinian number.

It is a congruent 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, 1290646672 + ... + 1290646681.

It is an arithmetic number, because the mean of its divisors is an integer number (3871940031).

Almost surely, 2^12906466765 is an apocalyptic number.

It is an amenable number.

12906466765 is a deficient number, since it is larger than the sum of its proper divisors (2581293359).

12906466765 is an equidigital number, since it uses as much as digits as its factorization.

12906466765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581293358.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 12906466765 in words is "twelve billion, nine hundred six million, four hundred sixty-six thousand, seven hundred sixty-five".