215207847887 has 2 divisors, whose sum is σ = 215207847888. Its totient is φ = 215207847886.

The previous prime is 215207847863. The next prime is 215207847889. The reversal of 215207847887 is 788748702512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215207847887 - 2¹⁸ = 215207585743 is a prime.

Together with 215207847889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215207847889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107603923943 + 107603923944.

It is an arithmetic number, because the mean of its divisors is an integer number (107603923944).

Almost surely, 2^215207847887 is an apocalyptic number.

215207847887 is a deficient number, since it is larger than the sum of its proper divisors (1).

215207847887 is an equidigital number, since it uses as much as digits as its factorization.

215207847887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14049280, while the sum is 59.

The spelling of 215207847887 in words is "two hundred fifteen billion, two hundred seven million, eight hundred forty-seven thousand, eight hundred eighty-seven".