4001940444079 has 16 divisors (see below), whose sum is σ = 4046513264640. Its totient is φ = 3957636180960.

The previous prime is 4001940444049. The next prime is 4001940444097. The reversal of 4001940444079 is 9704440491004.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4001940444079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001940444049) 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, 64177614 + ... + 64239940.

It is an arithmetic number, because the mean of its divisors is an integer number (252907079040).

Almost surely, 2^{4001940444079} is an apocalyptic number.

4001940444079 is a deficient number, since it is larger than the sum of its proper divisors (44572820561).

4001940444079 is a wasteful number, since it uses less digits than its factorization.

4001940444079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64470.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 4001940444079 in words is "four trillion, one billion, nine hundred forty million, four hundred forty-four thousand, seventy-nine".