404331955403 has 2 divisors, whose sum is σ = 404331955404. Its totient is φ = 404331955402.

The previous prime is 404331955397. The next prime is 404331955411. The reversal of 404331955403 is 304559133404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404331955403 - 2¹⁶ = 404331889867 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (404331955453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202165977701 + 202165977702.

It is an arithmetic number, because the mean of its divisors is an integer number (202165977702).

Almost surely, 2^404331955403 is an apocalyptic number.

404331955403 is a deficient number, since it is larger than the sum of its proper divisors (1).

404331955403 is an equidigital number, since it uses as much as digits as its factorization.

404331955403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 404331955403 in words is "four hundred four billion, three hundred thirty-one million, nine hundred fifty-five thousand, four hundred three".