3976279774868 has 12 divisors (see below), whose sum is σ = 6963188123892. Its totient is φ = 1986797453760.

The previous prime is 3976279774867. The next prime is 3976279774871. The reversal of 3976279774868 is 8684779726793.

It can be written as a sum of positive squares in 2 ways, for example, as 728254010884 + 3248025763984 = 853378^2 + 1802228^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3976279774867) 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, 335601755 + ... + 335613602.

It is an arithmetic number, because the mean of its divisors is an integer number (580265676991).

Almost surely, 2^{3976279774868} is an apocalyptic number.

It is an amenable number.

3976279774868 is a deficient number, since it is larger than the sum of its proper divisors (2986908349024).

3976279774868 is a wasteful number, since it uses less digits than its factorization.

3976279774868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671216842 (or 671216840 counting only the distinct ones).

The product of its digits is 10754021376, while the sum is 83.

The spelling of 3976279774868 in words is "three trillion, nine hundred seventy-six billion, two hundred seventy-nine million, seven hundred seventy-four thousand, eight hundred sixty-eight".