12955898647 has 4 divisors (see below), whose sum is σ = 12961217416. Its totient is φ = 12950579880.

The previous prime is 12955898633. The next prime is 12955898653. The reversal of 12955898647 is 74689855921.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12955898647 - 2¹¹ = 12955896599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12955898687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2655729 + ... + 2660602.

It is an arithmetic number, because the mean of its divisors is an integer number (3240304354).

Almost surely, 2^12955898647 is an apocalyptic number.

12955898647 is a deficient number, since it is larger than the sum of its proper divisors (5318769).

12955898647 is an equidigital number, since it uses as much as digits as its factorization.

12955898647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5318768.

The product of its digits is 43545600, while the sum is 64.

The spelling of 12955898647 in words is "twelve billion, nine hundred fifty-five million, eight hundred ninety-eight thousand, six hundred forty-seven".