6867331381 has 4 divisors (see below), whose sum is σ = 6878215264. Its totient is φ = 6856447500.

The previous prime is 6867331379. The next prime is 6867331411. The reversal of 6867331381 is 1831337686.

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 6867331381 - 2¹ = 6867331379 is a prime.

It is a super-2 number, since 2×6867331381² = 94320480592934734322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6867334381) 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, 5440995 + ... + 5442256.

It is an arithmetic number, because the mean of its divisors is an integer number (1719553816).

Almost surely, 2^6867331381 is an apocalyptic number.

It is an amenable number.

6867331381 is a deficient number, since it is larger than the sum of its proper divisors (10883883).

6867331381 is a wasteful number, since it uses less digits than its factorization.

6867331381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10883882.

The product of its digits is 435456, while the sum is 46.

The square root of 6867331381 is about 82869.3633437593. The cubic root of 6867331381 is about 1900.7689759924.

The spelling of 6867331381 in words is "six billion, eight hundred sixty-seven million, three hundred thirty-one thousand, three hundred eighty-one".