4090381688423 has 2 divisors, whose sum is σ = 4090381688424. Its totient is φ = 4090381688422.

The previous prime is 4090381688411. The next prime is 4090381688467. The reversal of 4090381688423 is 3248861830904.

4090381688423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4090381688423 - 2⁶ = 4090381688359 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4090081688423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2045190844211 + 2045190844212.

It is an arithmetic number, because the mean of its divisors is an integer number (2045190844212).

Almost surely, 2^{4090381688423} is an apocalyptic number.

4090381688423 is a deficient number, since it is larger than the sum of its proper divisors (1).

4090381688423 is an equidigital number, since it uses as much as digits as its factorization.

4090381688423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7962624, while the sum is 56.

The spelling of 4090381688423 in words is "four trillion, ninety billion, three hundred eighty-one million, six hundred eighty-eight thousand, four hundred twenty-three".