8162382381 has 4 divisors (see below), whose sum is σ = 10883176512. Its totient is φ = 5441588252.

The previous prime is 8162382379. The next prime is 8162382413. The reversal of 8162382381 is 1832832618.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8162382381 - 2¹ = 8162382379 is a prime.

It is a super-2 number, since 2×8162382381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8162384381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1360397061 + ... + 1360397066.

It is an arithmetic number, because the mean of its divisors is an integer number (2720794128).

Almost surely, 2^8162382381 is an apocalyptic number.

It is an amenable number.

8162382381 is a deficient number, since it is larger than the sum of its proper divisors (2720794131).

8162382381 is a wasteful number, since it uses less digits than its factorization.

8162382381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2720794130.

The product of its digits is 110592, while the sum is 42.

The square root of 8162382381 is about 90345.9040632169. The cubic root of 8162382381 is about 2013.4413280637.

The spelling of 8162382381 in words is "eight billion, one hundred sixty-two million, three hundred eighty-two thousand, three hundred eighty-one".