4081406564081 has 24 divisors (see below), whose sum is σ = 5177819220672. Its totient is φ = 3148828452000.

The previous prime is 4081406564077. The next prime is 4081406564099. The reversal of 4081406564081 is 1804656041804.

It is not a de Polignac number, because 4081406564081 - 2² = 4081406564077 is a prime.

It is a super-2 number, since 2×4081406564081² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4081406524081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23769215 + ... + 23940308.

It is an arithmetic number, because the mean of its divisors is an integer number (215742467528).

Almost surely, 2^{4081406564081} is an apocalyptic number.

It is an amenable number.

4081406564081 is a deficient number, since it is larger than the sum of its proper divisors (1096412656591).

4081406564081 is a wasteful number, since it uses less digits than its factorization.

4081406564081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47709653 (or 47709642 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 4081406564081 in words is "four trillion, eighty-one billion, four hundred six million, five hundred sixty-four thousand, eighty-one".