3911996644 has 24 divisors (see below), whose sum is σ = 7110331200. Its totient is φ = 1881012000.

The previous prime is 3911996629. The next prime is 3911996657. The reversal of 3911996644 is 4466991193.

It is a junction number, because it is equal to n+sod(n) for n = 3911996591 and 3911996600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38064 + ... + 96295.

It is an arithmetic number, because the mean of its divisors is an integer number (296263800).

Almost surely, 2^3911996644 is an apocalyptic number.

It is an amenable number.

3911996644 is a deficient number, since it is larger than the sum of its proper divisors (3198334556).

3911996644 is a wasteful number, since it uses less digits than its factorization.

3911996644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134643 (or 134641 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 52.

The square root of 3911996644 is about 62545.9562561801. The cubic root of 3911996644 is about 1575.6732345160.

The spelling of 3911996644 in words is "three billion, nine hundred eleven million, nine hundred ninety-six thousand, six hundred forty-four".