3821539694 has 48 divisors (see below), whose sum is σ = 6898484736. Its totient is φ = 1581476400.

The previous prime is 3821539691. The next prime is 3821539703. The reversal of 3821539694 is 4969351283.

It is a happy number.

It is a super-2 number, since 2×3821539694² = 29208331265635227272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3821539691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1733597 + ... + 1735799.

It is an arithmetic number, because the mean of its divisors is an integer number (143718432).

Almost surely, 2^3821539694 is an apocalyptic number.

3821539694 is a deficient number, since it is larger than the sum of its proper divisors (3076945042).

3821539694 is a wasteful number, since it uses less digits than its factorization.

3821539694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821 (or 2814 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 50.

The square root of 3821539694 is about 61818.6031385375. The cubic root of 3821539694 is about 1563.4336615397.

The spelling of 3821539694 in words is "three billion, eight hundred twenty-one million, five hundred thirty-nine thousand, six hundred ninety-four".