347018240857 has 4 divisors (see below), whose sum is σ = 347019639760. Its totient is φ = 347016841956.

The previous prime is 347018240851. The next prime is 347018240897. The reversal of 347018240857 is 758042810743.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-347018240857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 347018240857.

It is not an unprimeable number, because it can be changed into a prime (347018240851) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 215943 + ... + 860620.

It is an arithmetic number, because the mean of its divisors is an integer number (86754909940).

Almost surely, 2^347018240857 is an apocalyptic number.

It is an amenable number.

347018240857 is a deficient number, since it is larger than the sum of its proper divisors (1398903).

347018240857 is a wasteful number, since it uses less digits than its factorization.

347018240857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398902.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 347018240857 in words is "three hundred forty-seven billion, eighteen million, two hundred forty thousand, eight hundred fifty-seven".