3965181266 has 8 divisors (see below), whose sum is σ = 5977660800. Its totient is φ = 1972627668.

The previous prime is 3965181251. The next prime is 3965181271. The reversal of 3965181266 is 6621815693.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3965181266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4980986 + ... + 4981781.

It is an arithmetic number, because the mean of its divisors is an integer number (747207600).

Almost surely, 2^3965181266 is an apocalyptic number.

3965181266 is a deficient number, since it is larger than the sum of its proper divisors (2012479534).

3965181266 is a wasteful number, since it uses less digits than its factorization.

3965181266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9962968.

The product of its digits is 466560, while the sum is 47.

The square root of 3965181266 is about 62969.6852937983. The cubic root of 3965181266 is about 1582.7816812927.

The spelling of 3965181266 in words is "three billion, nine hundred sixty-five million, one hundred eighty-one thousand, two hundred sixty-six".