3684440168378 has 16 divisors (see below), whose sum is σ = 5723247311496. Its totient is φ = 1777830699840.

The previous prime is 3684440168363. The next prime is 3684440168459. The reversal of 3684440168378 is 8738610444863.

It can be written as a sum of positive squares in 4 ways, for example, as 1666327284769 + 2018112883609 = 1290863^2 + 1420603^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3684440168378.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284902301 + ... + 284915232.

Almost surely, 2^{3684440168378} is an apocalyptic number.

3684440168378 is a deficient number, since it is larger than the sum of its proper divisors (2038807143118).

3684440168378 is a wasteful number, since it uses less digits than its factorization.

3684440168378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569817649.

The product of its (nonzero) digits is 74317824, while the sum is 62.

The spelling of 3684440168378 in words is "three trillion, six hundred eighty-four billion, four hundred forty million, one hundred sixty-eight thousand, three hundred seventy-eight".