404545543979 has 2 divisors, whose sum is σ = 404545543980. Its totient is φ = 404545543978.

The previous prime is 404545543957. The next prime is 404545544033. The reversal of 404545543979 is 979345545404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404545543979 - 2³² = 400250576683 is a prime.

It is not a weakly prime, because it can be changed into another prime (404545540979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202272771989 + 202272771990.

It is an arithmetic number, because the mean of its divisors is an integer number (202272771990).

Almost surely, 2^404545543979 is an apocalyptic number.

404545543979 is a deficient number, since it is larger than the sum of its proper divisors (1).

404545543979 is an equidigital number, since it uses as much as digits as its factorization.

404545543979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432000, while the sum is 59.

The spelling of 404545543979 in words is "four hundred four billion, five hundred forty-five million, five hundred forty-three thousand, nine hundred seventy-nine".