4040407696385 has 8 divisors (see below), whose sum is σ = 4848500025000. Its totient is φ = 3232318964224.

The previous prime is 4040407696357. The next prime is 4040407696393. The reversal of 4040407696385 is 5836967040404.

It can be written as a sum of positive squares in 4 ways, for example, as 764003609329 + 3276404087056 = 874073^2 + 1810084^2 .

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 4040407696385 - 2³⁰ = 4039333954561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4040407696385.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3947759 + ... + 4864731.

It is an arithmetic number, because the mean of its divisors is an integer number (606062503125).

Almost surely, 2^{4040407696385} is an apocalyptic number.

It is an amenable number.

4040407696385 is a deficient number, since it is larger than the sum of its proper divisors (808092328615).

4040407696385 is an equidigital number, since it uses as much as digits as its factorization.

4040407696385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798227.

The product of its (nonzero) digits is 17418240, while the sum is 56.

The spelling of 4040407696385 in words is "four trillion, forty billion, four hundred seven million, six hundred ninety-six thousand, three hundred eighty-five".