344855256647 has 4 divisors (see below), whose sum is σ = 376205734536. Its totient is φ = 313504778760.

The previous prime is 344855256637. The next prime is 344855256659. The reversal of 344855256647 is 746652558443.

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 344855256647 - 2²⁰ = 344854208071 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 (344855256637) 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, 15675238928 + ... + 15675238949.

It is an arithmetic number, because the mean of its divisors is an integer number (94051433634).

Almost surely, 2^344855256647 is an apocalyptic number.

344855256647 is a deficient number, since it is larger than the sum of its proper divisors (31350477889).

344855256647 is a wasteful number, since it uses less digits than its factorization.

344855256647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31350477888.

The product of its digits is 96768000, while the sum is 59.

The spelling of 344855256647 in words is "three hundred forty-four billion, eight hundred fifty-five million, two hundred fifty-six thousand, six hundred forty-seven".