6347147677 has 4 divisors (see below), whose sum is σ = 6835389820. Its totient is φ = 5858905536.

The previous prime is 6347147663. The next prime is 6347147699. The reversal of 6347147677 is 7767417436.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1348799076 + 4998348601 = 36726^2 + 70699^2 .

It is a cyclic number.

It is not a de Polignac number, because 6347147677 - 2¹⁹ = 6346623389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6347147627) 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, 244121052 + ... + 244121077.

It is an arithmetic number, because the mean of its divisors is an integer number (1708847455).

Almost surely, 2^6347147677 is an apocalyptic number.

It is an amenable number.

6347147677 is a deficient number, since it is larger than the sum of its proper divisors (488242143).

6347147677 is a wasteful number, since it uses less digits than its factorization.

6347147677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488242142.

The product of its digits is 4148928, while the sum is 52.

The square root of 6347147677 is about 79668.9881760776. The cubic root of 6347147677 is about 1851.5105925556.

The spelling of 6347147677 in words is "six billion, three hundred forty-seven million, one hundred forty-seven thousand, six hundred seventy-seven".