3646431064322 has 32 divisors (see below), whose sum is σ = 5978036563200. Its totient is φ = 1661542243200.

The previous prime is 3646431064321. The next prime is 3646431064391. The reversal of 3646431064322 is 2234601346463.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3646431064321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5806379 + ... + 6403662.

It is an arithmetic number, because the mean of its divisors is an integer number (186813642600).

Almost surely, 2^{3646431064322} is an apocalyptic number.

3646431064322 is a deficient number, since it is larger than the sum of its proper divisors (2331605498878).

3646431064322 is a wasteful number, since it uses less digits than its factorization.

3646431064322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12210362.

The product of its (nonzero) digits is 1492992, while the sum is 44.

The spelling of 3646431064322 in words is "three trillion, six hundred forty-six billion, four hundred thirty-one million, sixty-four thousand, three hundred twenty-two".