8040408004481 has 4 divisors (see below), whose sum is σ = 8111562057732. Its totient is φ = 7969253951232.

The previous prime is 8040408004477. The next prime is 8040408004513. The reversal of 8040408004481 is 1844008040408.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3038453389456 + 5001954615025 = 1743116^2 + 2236505^2 .

It is a cyclic number.

It is not a de Polignac number, because 8040408004481 - 2² = 8040408004477 is a prime.

It is a super-2 number, since 2×8040408004481² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8040408004411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35577026456 + ... + 35577026681.

It is an arithmetic number, because the mean of its divisors is an integer number (2027890514433).

Almost surely, 2^{8040408004481} is an apocalyptic number.

It is an amenable number.

8040408004481 is a deficient number, since it is larger than the sum of its proper divisors (71154053251).

8040408004481 is a wasteful number, since it uses less digits than its factorization.

8040408004481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71154053250.

The product of its (nonzero) digits is 131072, while the sum is 41.

The spelling of 8040408004481 in words is "eight trillion, forty billion, four hundred eight million, four thousand, four hundred eighty-one".