5209918804826 has 16 divisors (see below), whose sum is σ = 7817047922880. Its totient is φ = 2604236264160.

The previous prime is 5209918804819. The next prime is 5209918804841. The reversal of 5209918804826 is 6284088199025.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194684435 + ... + 194711193.

It is an arithmetic number, because the mean of its divisors is an integer number (488565495180).

Almost surely, 2^{5209918804826} is an apocalyptic number.

5209918804826 is a deficient number, since it is larger than the sum of its proper divisors (2607129118054).

5209918804826 is a wasteful number, since it uses less digits than its factorization.

5209918804826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50149.

The product of its (nonzero) digits is 19906560, while the sum is 62.

The spelling of 5209918804826 in words is "five trillion, two hundred nine billion, nine hundred eighteen million, eight hundred four thousand, eight hundred twenty-six".