346142778922 has 8 divisors (see below), whose sum is σ = 519981104196. Its totient is φ = 172815744192.

The previous prime is 346142778901. The next prime is 346142778979. The reversal of 346142778922 is 229877241643.

It is a Cunningham number, because it is equal to 588339²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 346142778921 + 1 = 588339^2 + 1^2 .

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

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, 127820943 + ... + 127823650.

Almost surely, 2^346142778922 is an apocalyptic number.

346142778922 is a deficient number, since it is larger than the sum of its proper divisors (173838325274).

346142778922 is a wasteful number, since it uses less digits than its factorization.

346142778922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255645272.

The product of its digits is 8128512, while the sum is 55.

The spelling of 346142778922 in words is "three hundred forty-six billion, one hundred forty-two million, seven hundred seventy-eight thousand, nine hundred twenty-two".