5218356961827 has 12 divisors (see below), whose sum is σ = 7542750893184. Its totient is φ = 3476539639440.

The previous prime is 5218356961787. The next prime is 5218356961879. The reversal of 5218356961827 is 7281696538125.

5218356961827 is a `hidden beast` number, since 5 + 2 + 1 + 8 + 3 + 5 + 6 + 9 + 618 + 2 + 7 = 666.

It is not a de Polignac number, because 5218356961827 - 2¹² = 5218356957731 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (5218356961897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197069508 + ... + 197095985.

It is an arithmetic number, because the mean of its divisors is an integer number (628562574432).

Almost surely, 2^{5218356961827} is an apocalyptic number.

5218356961827 is a deficient number, since it is larger than the sum of its proper divisors (2324393931357).

5218356961827 is a wasteful number, since it uses less digits than its factorization.

5218356961827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394166970 (or 394166967 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 63.

The spelling of 5218356961827 in words is "five trillion, two hundred eighteen billion, three hundred fifty-six million, nine hundred sixty-one thousand, eight hundred twenty-seven".