6713772779 has 12 divisors (see below), whose sum is σ = 7813237608. Its totient is φ = 5752202400.

The previous prime is 6713772701. The next prime is 6713772799. The reversal of 6713772779 is 9772773176.

It is a happy number.

It is not a de Polignac number, because 6713772779 - 2²⁰ = 6712724203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6713772799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91544 + ... + 147674.

It is an arithmetic number, because the mean of its divisors is an integer number (651103134).

Almost surely, 2^6713772779 is an apocalyptic number.

6713772779 is a deficient number, since it is larger than the sum of its proper divisors (1099464829).

6713772779 is a wasteful number, since it uses less digits than its factorization.

6713772779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58586 (or 58579 counting only the distinct ones).

The product of its digits is 5445468, while the sum is 56.

The square root of 6713772779 is about 81937.6151654416. The cubic root of 6713772779 is about 1886.4945127158.

The spelling of 6713772779 in words is "six billion, seven hundred thirteen million, seven hundred seventy-two thousand, seven hundred seventy-nine".