6850722381 has 4 divisors (see below), whose sum is σ = 9134296512. Its totient is φ = 4567148252.

The previous prime is 6850722377. The next prime is 6850722391. The reversal of 6850722381 is 1832270586.

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 6850722381 - 2² = 6850722377 is a prime.

It is a super-2 number, since 2×6850722381² = 93864794283068618322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6850722331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1141787061 + ... + 1141787066.

It is an arithmetic number, because the mean of its divisors is an integer number (2283574128).

Almost surely, 2^6850722381 is an apocalyptic number.

It is an amenable number.

6850722381 is a deficient number, since it is larger than the sum of its proper divisors (2283574131).

6850722381 is a wasteful number, since it uses less digits than its factorization.

6850722381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283574130.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 6850722381 is about 82769.0907344040. The cubic root of 6850722381 is about 1899.2353692414.

The spelling of 6850722381 in words is "six billion, eight hundred fifty million, seven hundred twenty-two thousand, three hundred eighty-one".