8387361081 has 16 divisors (see below), whose sum is σ = 13555331520. Its totient is φ = 5083248960.

The previous prime is 8387361071. The next prime is 8387361091. The reversal of 8387361081 is 1801637838.

It is an interprime number because it is at equal distance from previous prime (8387361071) and next prime (8387361091).

It is not a de Polignac number, because 8387361081 - 2⁵ = 8387361049 is a prime.

It is a super-2 number, since 2×8387361081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8387361071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14119840 + ... + 14120433.

It is an arithmetic number, because the mean of its divisors is an integer number (847208220).

Almost surely, 2^8387361081 is an apocalyptic number.

It is an amenable number.

8387361081 is a deficient number, since it is larger than the sum of its proper divisors (5167970439).

8387361081 is a wasteful number, since it uses less digits than its factorization.

8387361081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28240293 (or 28240287 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 8387361081 is about 91582.5369871353. The cubic root of 8387361081 is about 2031.7726660478.

The spelling of 8387361081 in words is "eight billion, three hundred eighty-seven million, three hundred sixty-one thousand, eighty-one".