8216925863 has 2 divisors, whose sum is σ = 8216925864. Its totient is φ = 8216925862.

The previous prime is 8216925853. The next prime is 8216925919. The reversal of 8216925863 is 3685296128.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8216925863 - 2¹⁰ = 8216924839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8216925803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4108462931 + 4108462932.

It is an arithmetic number, because the mean of its divisors is an integer number (4108462932).

Almost surely, 2^8216925863 is an apocalyptic number.

8216925863 is a deficient number, since it is larger than the sum of its proper divisors (1).

8216925863 is an equidigital number, since it uses as much as digits as its factorization.

8216925863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 50.

The square root of 8216925863 is about 90647.2606480747. The cubic root of 8216925863 is about 2017.9161812328.

The spelling of 8216925863 in words is "eight billion, two hundred sixteen million, nine hundred twenty-five thousand, eight hundred sixty-three".