344645769213 has 16 divisors (see below), whose sum is σ = 514313237760. Its totient is φ = 228086735328.

The previous prime is 344645769191. The next prime is 344645769253. The reversal of 344645769213 is 312967546443.

344645769213 is a `hidden beast` number, since 3 + 4 + 4 + 64 + 576 + 9 + 2 + 1 + 3 = 666.

It is not a de Polignac number, because 344645769213 - 2²² = 344641574909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 344645769213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344645769253) 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, 46582645 + ... + 46590042.

It is an arithmetic number, because the mean of its divisors is an integer number (32144577360).

Almost surely, 2^344645769213 is an apocalyptic number.

It is an amenable number.

344645769213 is a deficient number, since it is larger than the sum of its proper divisors (169667468547).

344645769213 is a wasteful number, since it uses less digits than its factorization.

344645769213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93172833 (or 93172827 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The spelling of 344645769213 in words is "three hundred forty-four billion, six hundred forty-five million, seven hundred sixty-nine thousand, two hundred thirteen".