350678730685 has 4 divisors (see below), whose sum is σ = 420814476828. Its totient is φ = 280542984544.

The previous prime is 350678730607. The next prime is 350678730691. The reversal of 350678730685 is 586037876053.

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 249174682276 + 101504048409 = 499174^2 + 318597^2 .

It is a cyclic number.

It is not a de Polignac number, because 350678730685 - 2¹⁷ = 350678599613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35067873064 + ... + 35067873073.

It is an arithmetic number, because the mean of its divisors is an integer number (105203619207).

Almost surely, 2^350678730685 is an apocalyptic number.

It is an amenable number.

350678730685 is a deficient number, since it is larger than the sum of its proper divisors (70135746143).

350678730685 is an equidigital number, since it uses as much as digits as its factorization.

350678730685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70135746142.

The product of its (nonzero) digits is 25401600, while the sum is 58.

The spelling of 350678730685 in words is "three hundred fifty billion, six hundred seventy-eight million, seven hundred thirty thousand, six hundred eighty-five".