404064201623 has 2 divisors, whose sum is σ = 404064201624. Its totient is φ = 404064201622.

The previous prime is 404064201581. The next prime is 404064201643. The reversal of 404064201623 is 326102460404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404064201623 - 2¹² = 404064197527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404064201623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404064201643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202032100811 + 202032100812.

It is an arithmetic number, because the mean of its divisors is an integer number (202032100812).

Almost surely, 2^404064201623 is an apocalyptic number.

404064201623 is a deficient number, since it is larger than the sum of its proper divisors (1).

404064201623 is an equidigital number, since it uses as much as digits as its factorization.

404064201623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 404064201623 in words is "four hundred four billion, sixty-four million, two hundred one thousand, six hundred twenty-three".