6775156994 has 4 divisors (see below), whose sum is σ = 10162735494. Its totient is φ = 3387578496.

The previous prime is 6775156979. The next prime is 6775157029. The reversal of 6775156994 is 4996515776.

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

It can be written as a sum of positive squares in only one way, i.e., 5919301969 + 855855025 = 76937^2 + 29255^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1693789247 + ... + 1693789250.

Almost surely, 2^6775156994 is an apocalyptic number.

6775156994 is a deficient number, since it is larger than the sum of its proper divisors (3387578500).

6775156994 is a wasteful number, since it uses less digits than its factorization.

6775156994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387578499.

The product of its digits is 14288400, while the sum is 59.

The square root of 6775156994 is about 82311.3418308801. The cubic root of 6775156994 is about 1892.2265030823.

The spelling of 6775156994 in words is "six billion, seven hundred seventy-five million, one hundred fifty-six thousand, nine hundred ninety-four".