6784672381 has 4 divisors (see below), whose sum is σ = 6797076352. Its totient is φ = 6772268412.

The previous prime is 6784672343. The next prime is 6784672417. The reversal of 6784672381 is 1832764876.

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 6784672381 - 2⁷ = 6784672253 is a prime.

It is a super-2 number, since 2×6784672381² = 92063558635008418322, 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 (6784672331) 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, 6201165 + ... + 6202258.

It is an arithmetic number, because the mean of its divisors is an integer number (1699269088).

Almost surely, 2^6784672381 is an apocalyptic number.

It is an amenable number.

6784672381 is a deficient number, since it is larger than the sum of its proper divisors (12403971).

6784672381 is a wasteful number, since it uses less digits than its factorization.

6784672381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12403970.

The product of its digits is 2709504, while the sum is 52.

The square root of 6784672381 is about 82369.1227402599. The cubic root of 6784672381 is about 1893.1119361861. Note that the first 3 decimals are identical.

The spelling of 6784672381 in words is "six billion, seven hundred eighty-four million, six hundred seventy-two thousand, three hundred eighty-one".