3963140517644 has 48 divisors (see below), whose sum is σ = 8655321728256. Its totient is φ = 1542568276800.

The previous prime is 3963140517629. The next prime is 3963140517673. The reversal of 3963140517644 is 4467150413693.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5986874 + ... + 6615809.

It is an arithmetic number, because the mean of its divisors is an integer number (180319202672).

Almost surely, 2^{3963140517644} is an apocalyptic number.

It is an amenable number.

3963140517644 is an abundant number, since it is smaller than the sum of its proper divisors (4692181210612).

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

3963140517644 is a wasteful number, since it uses less digits than its factorization.

3963140517644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12603726 (or 12603724 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 3963140517644 in words is "three trillion, nine hundred sixty-three billion, one hundred forty million, five hundred seventeen thousand, six hundred forty-four".