3678163640 has 64 divisors (see below), whose sum is σ = 8992512000. Its totient is φ = 1348859520.

The previous prime is 3678163637. The next prime is 3678163649. The reversal of 3678163640 is 463618763.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3678163591 and 3678163600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3678163649) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 54500 + ... + 101619.

It is an arithmetic number, because the mean of its divisors is an integer number (140508000).

Almost surely, 2^3678163640 is an apocalyptic number.

It is an amenable number.

3678163640 is an abundant number, since it is smaller than the sum of its proper divisors (5314348360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3678163640 is a wasteful number, since it uses less digits than its factorization.

3678163640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156180 (or 156176 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 3678163640 is about 60647.8659146387. The cubic root of 3678163640 is about 1543.6316774256.

The spelling of 3678163640 in words is "three billion, six hundred seventy-eight million, one hundred sixty-three thousand, six hundred forty".