404804518807 has 16 divisors (see below), whose sum is σ = 441629870080. Its totient is φ = 368795138400.

The previous prime is 404804518793. The next prime is 404804518837. The reversal of 404804518807 is 708815408404.

It is a de Polignac number, because none of the positive numbers 2^k-404804518807 is a prime.

It is the 636243-rd Hogben number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404804518837) by changing a digit.

It is a nontrivial repunit in base 636242.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2669332 + ... + 2816902.

It is an arithmetic number, because the mean of its divisors is an integer number (27601866880).

Almost surely, 2^404804518807 is an apocalyptic number.

404804518807 is a deficient number, since it is larger than the sum of its proper divisors (36825351273).

404804518807 is a wasteful number, since it uses less digits than its factorization.

404804518807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150334.

The product of its (nonzero) digits is 1146880, while the sum is 49.

The spelling of 404804518807 in words is "four hundred four billion, eight hundred four million, five hundred eighteen thousand, eight hundred seven".