6775786623 has 4 divisors (see below), whose sum is σ = 9034382168. Its totient is φ = 4517191080.

The previous prime is 6775786613. The next prime is 6775786657. The reversal of 6775786623 is 3266875776.

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

It is not a de Polignac number, because 6775786623 - 2⁴ = 6775786607 is a prime.

It is a super-2 number, since 2×6775786623² = 91822568720851488258, 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 (6775786603) 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, 1129297768 + ... + 1129297773.

It is an arithmetic number, because the mean of its divisors is an integer number (2258595542).

Almost surely, 2^6775786623 is an apocalyptic number.

6775786623 is a deficient number, since it is larger than the sum of its proper divisors (2258595545).

6775786623 is a wasteful number, since it uses less digits than its factorization.

6775786623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258595544.

The product of its digits is 17781120, while the sum is 57.

The square root of 6775786623 is about 82315.1664215046. The cubic root of 6775786623 is about 1892.2851174080.

The spelling of 6775786623 in words is "six billion, seven hundred seventy-five million, seven hundred eighty-six thousand, six hundred twenty-three".