6682691903 has 4 divisors (see below), whose sum is σ = 6684469680. Its totient is φ = 6680914128.

The previous prime is 6682691893. The next prime is 6682691933. The reversal of 6682691903 is 3091962866.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6682691903 - 2⁴ = 6682691887 is a prime.

It is a super-2 number, since 2×6682691903² = 89316742140843522818, 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 (6682691933) 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, 883238 + ... + 890771.

It is an arithmetic number, because the mean of its divisors is an integer number (1671117420).

Almost surely, 2^6682691903 is an apocalyptic number.

6682691903 is a deficient number, since it is larger than the sum of its proper divisors (1777777).

6682691903 is a wasteful number, since it uses less digits than its factorization.

6682691903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777776.

The product of its (nonzero) digits is 839808, while the sum is 50.

The square root of 6682691903 is about 81747.7333202579. The cubic root of 6682691903 is about 1883.5788835204.

The spelling of 6682691903 in words is "six billion, six hundred eighty-two million, six hundred ninety-one thousand, nine hundred three".