6496777667 has 4 divisors (see below), whose sum is σ = 6520232016. Its totient is φ = 6473323320.

The previous prime is 6496777657. The next prime is 6496777669. The reversal of 6496777667 is 7667776946.

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 6496777667 - 2¹⁴ = 6496761283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6496777669) 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, 11726759 + ... + 11727312.

It is an arithmetic number, because the mean of its divisors is an integer number (1630058004).

Almost surely, 2^6496777667 is an apocalyptic number.

6496777667 is a deficient number, since it is larger than the sum of its proper divisors (23454349).

6496777667 is a wasteful number, since it uses less digits than its factorization.

6496777667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23454348.

The product of its digits is 112021056, while the sum is 65.

The square root of 6496777667 is about 80602.5909447085. The cubic root of 6496777667 is about 1865.9471327183.

The spelling of 6496777667 in words is "six billion, four hundred ninety-six million, seven hundred seventy-seven thousand, six hundred sixty-seven".