6776278823 has 4 divisors (see below), whose sum is σ = 7009943640. Its totient is φ = 6542614008.

The previous prime is 6776278819. The next prime is 6776278841. The reversal of 6776278823 is 3288726776.

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 6776278823 - 2² = 6776278819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6776278843) 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, 116832365 + ... + 116832422.

It is an arithmetic number, because the mean of its divisors is an integer number (1752485910).

Almost surely, 2^6776278823 is an apocalyptic number.

6776278823 is a deficient number, since it is larger than the sum of its proper divisors (233664817).

6776278823 is a wasteful number, since it uses less digits than its factorization.

6776278823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233664816.

The product of its digits is 9483264, while the sum is 56.

The square root of 6776278823 is about 82318.1560957241. The cubic root of 6776278823 is about 1892.3309354675.

The spelling of 6776278823 in words is "six billion, seven hundred seventy-six million, two hundred seventy-eight thousand, eight hundred twenty-three".