6776291668 has 12 divisors (see below), whose sum is σ = 11927057940. Its totient is φ = 3368560832.

The previous prime is 6776291653. The next prime is 6776291707. The reversal of 6776291668 is 8661926776.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6223947664 + 552344004 = 78892^2 + 23502^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4895473 + ... + 4896856.

It is an arithmetic number, because the mean of its divisors is an integer number (993921495).

Almost surely, 2^6776291668 is an apocalyptic number.

It is an amenable number.

6776291668 is a deficient number, since it is larger than the sum of its proper divisors (5150766272).

6776291668 is a wasteful number, since it uses less digits than its factorization.

6776291668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9792506 (or 9792504 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 58.

The square root of 6776291668 is about 82318.2341161422. The cubic root of 6776291668 is about 1892.3321311570.

The spelling of 6776291668 in words is "six billion, seven hundred seventy-six million, two hundred ninety-one thousand, six hundred sixty-eight".