347720128242 has 8 divisors (see below), whose sum is σ = 695440256496. Its totient is φ = 115906709412.

The previous prime is 347720128241. The next prime is 347720128243. The reversal of 347720128242 is 242821027743.

It is an interprime number because it is at equal distance from previous prime (347720128241) and next prime (347720128243).

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

347720128242 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 347720128194 and 347720128203.

It is not an unprimeable number, because it can be changed into a prime (347720128241) 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, 28976677348 + ... + 28976677359.

It is an arithmetic number, because the mean of its divisors is an integer number (86930032062).

Almost surely, 2^347720128242 is an apocalyptic number.

347720128242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

347720128242 is a wasteful number, since it uses less digits than its factorization.

347720128242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57953354712.

The product of its (nonzero) digits is 301056, while the sum is 42.

The spelling of 347720128242 in words is "three hundred forty-seven billion, seven hundred twenty million, one hundred twenty-eight thousand, two hundred forty-two".