6479772767 has 8 divisors (see below), whose sum is σ = 6979138320. Its totient is φ = 5980538880.

The previous prime is 6479772709. The next prime is 6479772769. The reversal of 6479772767 is 7672779746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6479772767 - 2¹⁰ = 6479771743 is a prime.

It is a super-2 number, since 2×6479772767² = 83974910223909672578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6479772769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84959 + ... + 142047.

It is an arithmetic number, because the mean of its divisors is an integer number (872392290).

Almost surely, 2^6479772767 is an apocalyptic number.

6479772767 is a deficient number, since it is larger than the sum of its proper divisors (499365553).

6479772767 is a wasteful number, since it uses less digits than its factorization.

6479772767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65833.

The product of its digits is 43563744, while the sum is 62.

The square root of 6479772767 is about 80497.0357653001. The cubic root of 6479772767 is about 1864.3177111644.

The spelling of 6479772767 in words is "six billion, four hundred seventy-nine million, seven hundred seventy-two thousand, seven hundred sixty-seven".