349473981013 has 4 divisors (see below), whose sum is σ = 349926082668. Its totient is φ = 349021879360.

The previous prime is 349473980993. The next prime is 349473981029. The reversal of 349473981013 is 310189374943.

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 50228877924 + 299245103089 = 224118^2 + 547033^2 .

It is a cyclic number.

It is not a de Polignac number, because 349473981013 - 2¹⁷ = 349473849941 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 (349473981613) 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, 226049668 + ... + 226051213.

It is an arithmetic number, because the mean of its divisors is an integer number (87481520667).

Almost surely, 2^349473981013 is an apocalyptic number.

It is an amenable number.

349473981013 is a deficient number, since it is larger than the sum of its proper divisors (452101655).

349473981013 is an equidigital number, since it uses as much as digits as its factorization.

349473981013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452101654.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 349473981013 in words is "three hundred forty-nine billion, four hundred seventy-three million, nine hundred eighty-one thousand, thirteen".