344877448813 has 4 divisors (see below), whose sum is σ = 353289093948. Its totient is φ = 336465803680.

The previous prime is 344877448771. The next prime is 344877448829. The reversal of 344877448813 is 318844778443.

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 52513388964 + 292364059849 = 229158^2 + 540707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344877448813 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 (344877448873) 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, 4205822506 + ... + 4205822587.

It is an arithmetic number, because the mean of its divisors is an integer number (88322273487).

Almost surely, 2^344877448813 is an apocalyptic number.

It is an amenable number.

344877448813 is a deficient number, since it is larger than the sum of its proper divisors (8411645135).

344877448813 is an equidigital number, since it uses as much as digits as its factorization.

344877448813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8411645134.

The product of its digits is 57802752, while the sum is 61.

The spelling of 344877448813 in words is "three hundred forty-four billion, eight hundred seventy-seven million, four hundred forty-eight thousand, eight hundred thirteen".