349890165392 has 10 divisors (see below), whose sum is σ = 677912195478. Its totient is φ = 174945082688.

The previous prime is 349890165389. The next prime is 349890165403. The reversal of 349890165392 is 293561098943.

It can be written as a sum of positive squares in only one way, i.e., 348435200656 + 1454964736 = 590284^2 + 38144^2 .

It is a super-2 number, since 2×349890165392² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10934067653 + ... + 10934067684.

Almost surely, 2^349890165392 is an apocalyptic number.

It is an amenable number.

349890165392 is a deficient number, since it is larger than the sum of its proper divisors (328022030086).

349890165392 is a wasteful number, since it uses less digits than its factorization.

349890165392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21868135345 (or 21868135339 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 59.

The spelling of 349890165392 in words is "three hundred forty-nine billion, eight hundred ninety million, one hundred sixty-five thousand, three hundred ninety-two".