361781222344 has 16 divisors (see below), whose sum is σ = 678586233420. Its totient is φ = 180824893440.

The previous prime is 361781222311. The next prime is 361781222353. The reversal of 361781222344 is 443222187163.

It can be written as a sum of positive squares in 2 ways, for example, as 346414644900 + 15366577444 = 588570^2 + 123962^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 361781222344.

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, 8191317 + ... + 8235364.

Almost surely, 2^361781222344 is an apocalyptic number.

It is an amenable number.

361781222344 is a deficient number, since it is larger than the sum of its proper divisors (316805011076).

361781222344 is a wasteful number, since it uses less digits than its factorization.

361781222344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16429440 (or 16429436 counting only the distinct ones).

The product of its digits is 387072, while the sum is 43.

The spelling of 361781222344 in words is "three hundred sixty-one billion, seven hundred eighty-one million, two hundred twenty-two thousand, three hundred forty-four".