6747867977 has 2 divisors, whose sum is σ = 6747867978. Its totient is φ = 6747867976.

The previous prime is 6747867961. The next prime is 6747868003. The reversal of 6747867977 is 7797687476.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4091393296 + 2656474681 = 63964^2 + 51541^2 .

It is a cyclic number.

It is not a de Polignac number, because 6747867977 - 2⁴ = 6747867961 is a prime.

It is a super-3 number, since 3×6747867977³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (6747867947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3373933988 + 3373933989.

It is an arithmetic number, because the mean of its divisors is an integer number (3373933989).

Almost surely, 2^6747867977 is an apocalyptic number.

It is an amenable number.

6747867977 is a deficient number, since it is larger than the sum of its proper divisors (1).

6747867977 is an equidigital number, since it uses as much as digits as its factorization.

6747867977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174254976, while the sum is 68.

The square root of 6747867977 is about 82145.4075222711. The cubic root of 6747867977 is about 1889.6825775445.

The spelling of 6747867977 in words is "six billion, seven hundred forty-seven million, eight hundred sixty-seven thousand, nine hundred seventy-seven".