347481993013 has 8 divisors (see below), whose sum is σ = 348112214456. Its totient is φ = 346851979200.

The previous prime is 347481992959. The next prime is 347481993017. The reversal of 347481993013 is 310399184743.

347481993013 = 416822² + 416823².

It can be written as a sum of positive squares in 4 ways, for example, as 56824070884 + 290657922129 = 238378^2 + 539127^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 347481993013 - 2²⁹ = 346945122101 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 (347481993017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3519583 + ... + 3616963.

It is an arithmetic number, because the mean of its divisors is an integer number (43514026807).

Almost surely, 2^347481993013 is an apocalyptic number.

347481993013 is the 416823-rd centered square number.

It is an amenable number.

347481993013 is a deficient number, since it is larger than the sum of its proper divisors (630221443).

347481993013 is an equidigital number, since it uses as much as digits as its factorization.

347481993013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103815.

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

The spelling of 347481993013 in words is "three hundred forty-seven billion, four hundred eighty-one million, nine hundred ninety-three thousand, thirteen".