347708273138 has 24 divisors (see below), whose sum is σ = 545935259100. Its totient is φ = 166078623744.

The previous prime is 347708273063. The next prime is 347708273147. The reversal of 347708273138 is 831372807743.

It can be written as a sum of positive squares in 2 ways, for example, as 297409894609 + 50298378529 = 545353^2 + 224273^2 .

It is a super-2 number, since 2×347708273138² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 347708273138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 599918 + ... + 1027286.

Almost surely, 2^347708273138 is an apocalyptic number.

347708273138 is a deficient number, since it is larger than the sum of its proper divisors (198226985962).

347708273138 is a wasteful number, since it uses less digits than its factorization.

347708273138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428186 (or 428163 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 53.

The spelling of 347708273138 in words is "three hundred forty-seven billion, seven hundred eight million, two hundred seventy-three thousand, one hundred thirty-eight".