6683745869 has 4 divisors (see below), whose sum is σ = 6683922144. Its totient is φ = 6683569596.

The previous prime is 6683745863. The next prime is 6683745953. The reversal of 6683745869 is 9685473866.

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 6683745869 - 2⁴ = 6683745853 is a prime.

It is a super-2 number, since 2×6683745869² = 89344917682749130322, 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 (6683745863) 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, 5327 + ... + 115740.

It is an arithmetic number, because the mean of its divisors is an integer number (1670980536).

Almost surely, 2^6683745869 is an apocalyptic number.

It is an amenable number.

6683745869 is a deficient number, since it is larger than the sum of its proper divisors (176275).

6683745869 is a wasteful number, since it uses less digits than its factorization.

6683745869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176274.

The product of its digits is 52254720, while the sum is 62.

The square root of 6683745869 is about 81754.1795200710. The cubic root of 6683745869 is about 1883.6779016891.

The spelling of 6683745869 in words is "six billion, six hundred eighty-three million, seven hundred forty-five thousand, eight hundred sixty-nine".