215207184851 has 2 divisors, whose sum is σ = 215207184852. Its totient is φ = 215207184850.

The previous prime is 215207184811. The next prime is 215207184853. The reversal of 215207184851 is 158481702512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215207184851 - 2¹⁰ = 215207183827 is a prime.

It is a super-3 number, since 3×215207184851³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 215207184853, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (215207184853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107603592425 + 107603592426.

It is an arithmetic number, because the mean of its divisors is an integer number (107603592426).

Almost surely, 2^215207184851 is an apocalyptic number.

215207184851 is a deficient number, since it is larger than the sum of its proper divisors (1).

215207184851 is an equidigital number, since it uses as much as digits as its factorization.

215207184851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 179200, while the sum is 44.

The spelling of 215207184851 in words is "two hundred fifteen billion, two hundred seven million, one hundred eighty-four thousand, eight hundred fifty-one".