3961677868 has 12 divisors (see below), whose sum is σ = 6949024992. Its totient is φ = 1976242160.

The previous prime is 3961677857. The next prime is 3961677877. The reversal of 3961677868 is 8687761693.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1147255 + ... + 1150702.

It is an arithmetic number, because the mean of its divisors is an integer number (579085416).

Almost surely, 2^3961677868 is an apocalyptic number.

It is an amenable number.

3961677868 is a deficient number, since it is larger than the sum of its proper divisors (2987347124).

3961677868 is a wasteful number, since it uses less digits than its factorization.

3961677868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298392 (or 2298390 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 61.

The square root of 3961677868 is about 62941.8610147492. The cubic root of 3961677868 is about 1582.3153933967.

The spelling of 3961677868 in words is "three billion, nine hundred sixty-one million, six hundred seventy-seven thousand, eight hundred sixty-eight".