3961377266 has 96 divisors (see below), whose sum is σ = 7762469760. Its totient is φ = 1498694400.

The previous prime is 3961377229. The next prime is 3961377289. The reversal of 3961377266 is 6627731693.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5586920 + ... + 5587628.

It is an arithmetic number, because the mean of its divisors is an integer number (80859060).

Almost surely, 2^3961377266 is an apocalyptic number.

3961377266 is a deficient number, since it is larger than the sum of its proper divisors (3801092494).

3961377266 is a wasteful number, since it uses less digits than its factorization.

3961377266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 873 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 50.

The square root of 3961377266 is about 62939.4730356078. The cubic root of 3961377266 is about 1582.2753717006.

The spelling of 3961377266 in words is "three billion, nine hundred sixty-one million, three hundred seventy-seven thousand, two hundred sixty-six".