6693872381 has 8 divisors (see below), whose sum is σ = 7764321600. Its totient is φ = 5651968608.

The previous prime is 6693872371. The next prime is 6693872389. The reversal of 6693872381 is 1832783966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6693872381 - 2¹⁰ = 6693871357 is a prime.

It is a super-2 number, since 2×6693872381² = 89615854906229218322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6693872389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7135856 + ... + 7136793.

It is an arithmetic number, because the mean of its divisors is an integer number (970540200).

Almost surely, 2^6693872381 is an apocalyptic number.

It is an amenable number.

6693872381 is a deficient number, since it is larger than the sum of its proper divisors (1070449219).

6693872381 is a wasteful number, since it uses less digits than its factorization.

6693872381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14272723.

The product of its digits is 2612736, while the sum is 53.

The square root of 6693872381 is about 81816.0887662078. The cubic root of 6693872381 is about 1884.6287388307.

The spelling of 6693872381 in words is "six billion, six hundred ninety-three million, eight hundred seventy-two thousand, three hundred eighty-one".