3685782156 has 72 divisors (see below), whose sum is σ = 10173925440. Its totient is φ = 1035222048.

The previous prime is 3685782137. The next prime is 3685782161. The reversal of 3685782156 is 6512875863.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3685782099 and 3685782108.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18430 + ... + 87813.

It is an arithmetic number, because the mean of its divisors is an integer number (141304520).

Almost surely, 2^3685782156 is an apocalyptic number.

It is an amenable number.

3685782156 is an abundant number, since it is smaller than the sum of its proper divisors (6488143284).

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

3685782156 is a wasteful number, since it uses less digits than its factorization.

3685782156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106323 (or 106314 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The square root of 3685782156 is about 60710.6428560924. The cubic root of 3685782156 is about 1544.6967082000.

The spelling of 3685782156 in words is "three billion, six hundred eighty-five million, seven hundred eighty-two thousand, one hundred fifty-six".