404137991347 has 2 divisors, whose sum is σ = 404137991348. Its totient is φ = 404137991346.

The previous prime is 404137991333. The next prime is 404137991447. The reversal of 404137991347 is 743199731404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404137991347 - 2⁷ = 404137991219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404137991294 and 404137991303.

It is not a weakly prime, because it can be changed into another prime (404137991447) by changing a digit.

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 as a sum of consecutive naturals, namely, 202068995673 + 202068995674.

It is an arithmetic number, because the mean of its divisors is an integer number (202068995674).

Almost surely, 2^404137991347 is an apocalyptic number.

404137991347 is a deficient number, since it is larger than the sum of its proper divisors (1).

404137991347 is an equidigital number, since it uses as much as digits as its factorization.

404137991347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 404137991347 in words is "four hundred four billion, one hundred thirty-seven million, nine hundred ninety-one thousand, three hundred forty-seven".