3851500000 has 84 divisors (see below), whose sum is σ = 9479409912. Its totient is φ = 1540400000.

The previous prime is 3851499997. The next prime is 3851500021. The reversal of 3851500000 is 51583.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 496149 + ... + 503851.

It is an arithmetic number, because the mean of its divisors is an integer number (112850118).

Almost surely, 2^3851500000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3851500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4739704956).

3851500000 is an abundant number, since it is smaller than the sum of its proper divisors (5627909912).

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

3851500000 is an frugal number, since it uses more digits than its factorization.

3851500000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743 (or 7710 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 3851500000 is about 62060.4543973052. The cubic root of 3851500000 is about 1567.5087269426.

Adding to 3851500000 its reverse (51583), we get a palindrome (3851551583).

The spelling of 3851500000 in words is "three billion, eight hundred fifty-one million, five hundred thousand".