5209918804827 has 24 divisors (see below), whose sum is σ = 8212889091888. Its totient is φ = 3156249600000.

The previous prime is 5209918804819. The next prime is 5209918804841. The reversal of 5209918804827 is 7284088199025.

5209918804827 is a `hidden beast` number, since 52 + 0 + 99 + 18 + 8 + 0 + 482 + 7 = 666.

It is not a de Polignac number, because 5209918804827 - 2³ = 5209918804819 is a prime.

It is a super-2 number, since 2×5209918804827² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5209918804127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10395174 + ... + 10884827.

It is an arithmetic number, because the mean of its divisors is an integer number (342203712162).

Almost surely, 2^{5209918804827} is an apocalyptic number.

5209918804827 is a deficient number, since it is larger than the sum of its proper divisors (3002970287061).

5209918804827 is a wasteful number, since it uses less digits than its factorization.

5209918804827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21282491 (or 21282488 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 63.

The spelling of 5209918804827 in words is "five trillion, two hundred nine billion, nine hundred eighteen million, eight hundred four thousand, eight hundred twenty-seven".