4001940444081 has 8 divisors (see below), whose sum is σ = 5449450817664. Its totient is φ = 2611195183280.

The previous prime is 4001940444049. The next prime is 4001940444097. The reversal of 4001940444081 is 1804440491004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4001940444081 - 2⁵ = 4001940444049 is a prime.

It is a super-2 number, since 2×4001940444081² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4001940444011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14191278030 + ... + 14191278311.

It is an arithmetic number, because the mean of its divisors is an integer number (681181352208).

Almost surely, 2^{4001940444081} is an apocalyptic number.

It is an amenable number.

4001940444081 is a deficient number, since it is larger than the sum of its proper divisors (1447510373583).

4001940444081 is a wasteful number, since it uses less digits than its factorization.

4001940444081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28382556391.

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 4001940444081 in words is "four trillion, one billion, nine hundred forty million, four hundred forty-four thousand, eighty-one".