4771438666677 has 12 divisors (see below), whose sum is σ = 6893780294700. Its totient is φ = 3180173470848.

The previous prime is 4771438666669. The next prime is 4771438666789. The reversal of 4771438666677 is 7766668341774.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1359915151716 + 3411523514961 = 1166154^2 + 1847031^2 .

It is not a de Polignac number, because 4771438666677 - 2³ = 4771438666669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4771438666667) 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, 65431558 + ... + 65504439.

It is an arithmetic number, because the mean of its divisors is an integer number (574481691225).

Almost surely, 2^{4771438666677} is an apocalyptic number.

It is an amenable number.

4771438666677 is a deficient number, since it is larger than the sum of its proper divisors (2122341628023).

4771438666677 is a wasteful number, since it uses less digits than its factorization.

4771438666677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130940052 (or 130940049 counting only the distinct ones).

The product of its digits is 1194891264, while the sum is 72.

The spelling of 4771438666677 in words is "four trillion, seven hundred seventy-one billion, four hundred thirty-eight million, six hundred sixty-six thousand, six hundred seventy-seven".