3850686000 has 640 divisors, whose sum is σ = 16118968320. Its totient is φ = 860544000.

The previous prime is 3850685947. The next prime is 3850686001. The reversal of 3850686000 is 6860583.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3850686001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 23057917 + ... + 23058083.

It is an arithmetic number, because the mean of its divisors is an integer number (25185888).

Almost surely, 2^3850686000 is an apocalyptic number.

3850686000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3850686000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8059484160).

3850686000 is an abundant number, since it is smaller than the sum of its proper divisors (12268282320).

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

3850686000 is a wasteful number, since it uses less digits than its factorization.

3850686000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3850686000 is about 62053.8959292646. The cubic root of 3850686000 is about 1567.3982901428.

The spelling of 3850686000 in words is "three billion, eight hundred fifty million, six hundred eighty-six thousand".