8365426987 has 2 divisors, whose sum is σ = 8365426988. Its totient is φ = 8365426986.

The previous prime is 8365426943. The next prime is 8365427011. The reversal of 8365426987 is 7896245638.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8365426987 - 2¹¹ = 8365424939 is a prime.

It is not a weakly prime, because it can be changed into another prime (8365466987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4182713493 + 4182713494.

It is an arithmetic number, because the mean of its divisors is an integer number (4182713494).

Almost surely, 2^8365426987 is an apocalyptic number.

8365426987 is a deficient number, since it is larger than the sum of its proper divisors (1).

8365426987 is an equidigital number, since it uses as much as digits as its factorization.

8365426987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 58.

The square root of 8365426987 is about 91462.7081766115. The cubic root of 8365426987 is about 2029.9999989484. Note that the first 5 decimals are identical.

The spelling of 8365426987 in words is "eight billion, three hundred sixty-five million, four hundred twenty-six thousand, nine hundred eighty-seven".