404635436123 has 2 divisors, whose sum is σ = 404635436124. Its totient is φ = 404635436122.

The previous prime is 404635436111. The next prime is 404635436131. The reversal of 404635436123 is 321634536404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404635436123 - 2¹⁸ = 404635173979 is a prime.

It is a super-2 number, since 2×404635436123² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (404635436323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202317718061 + 202317718062.

It is an arithmetic number, because the mean of its divisors is an integer number (202317718062).

Almost surely, 2^404635436123 is an apocalyptic number.

404635436123 is a deficient number, since it is larger than the sum of its proper divisors (1).

404635436123 is an equidigital number, since it uses as much as digits as its factorization.

404635436123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 404635436123 in words is "four hundred four billion, six hundred thirty-five million, four hundred thirty-six thousand, one hundred twenty-three".