3850061638 has 16 divisors (see below), whose sum is σ = 6218447760. Its totient is φ = 1781084416.

The previous prime is 3850061627. The next prime is 3850061639. The reversal of 3850061638 is 8361600583.

It is a self number, because there is not a number n which added to its sum of digits gives 3850061638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3850061639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957631 + ... + 961642.

It is an arithmetic number, because the mean of its divisors is an integer number (388652985).

Almost surely, 2^3850061638 is an apocalyptic number.

3850061638 is a deficient number, since it is larger than the sum of its proper divisors (2368386122).

3850061638 is a wasteful number, since it uses less digits than its factorization.

3850061638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919351.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 3850061638 is about 62048.8649211249. The cubic root of 3850061638 is about 1567.3135713136.

The spelling of 3850061638 in words is "three billion, eight hundred fifty million, sixty-one thousand, six hundred thirty-eight".