3857785536 has 112 divisors (see below), whose sum is σ = 11721144960. Its totient is φ = 1107486720.

The previous prime is 3857785513. The next prime is 3857785553. The reversal of 3857785536 is 6355877583.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7941 + ... + 88196.

It is an arithmetic number, because the mean of its divisors is an integer number (104653080).

Almost surely, 2^3857785536 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 3857785536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5860572480).

3857785536 is an abundant number, since it is smaller than the sum of its proper divisors (7863359424).

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

3857785536 is a wasteful number, since it uses less digits than its factorization.

3857785536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96182 (or 96172 counting only the distinct ones).

The product of its digits is 21168000, while the sum is 57.

The square root of 3857785536 is about 62111.0741816626. The cubic root of 3857785536 is about 1568.3609730503.

The spelling of 3857785536 in words is "three billion, eight hundred fifty-seven million, seven hundred eighty-five thousand, five hundred thirty-six".