3646439984396 has 12 divisors (see below), whose sum is σ = 6961385424840. Its totient is φ = 1657472720160.

The previous prime is 3646439984389. The next prime is 3646439984449. The reversal of 3646439984396 is 6934899346463.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41436817961 + ... + 41436818048.

It is an arithmetic number, because the mean of its divisors is an integer number (580115452070).

Almost surely, 2^{3646439984396} is an apocalyptic number.

It is an amenable number.

3646439984396 is a deficient number, since it is larger than the sum of its proper divisors (3314945440444).

3646439984396 is a wasteful number, since it uses less digits than its factorization.

3646439984396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82873636024 (or 82873636022 counting only the distinct ones).

The product of its digits is 2176782336, while the sum is 74.

The spelling of 3646439984396 in words is "three trillion, six hundred forty-six billion, four hundred thirty-nine million, nine hundred eighty-four thousand, three hundred ninety-six".