382771656961 has 2 divisors, whose sum is σ = 382771656962. Its totient is φ = 382771656960.

The previous prime is 382771656907. The next prime is 382771656973. The reversal of 382771656961 is 169656177283.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224879866225 + 157891790736 = 474215^2 + 397356^2 .

It is a cyclic number.

It is not a de Polignac number, because 382771656961 - 2²⁵ = 382738102529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 382771656961.

It is not a weakly prime, because it can be changed into another prime (382771653961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191385828480 + 191385828481.

It is an arithmetic number, because the mean of its divisors is an integer number (191385828481).

Almost surely, 2^382771656961 is an apocalyptic number.

It is an amenable number.

382771656961 is a deficient number, since it is larger than the sum of its proper divisors (1).

382771656961 is an equidigital number, since it uses as much as digits as its factorization.

382771656961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22861440, while the sum is 61.

The spelling of 382771656961 in words is "three hundred eighty-two billion, seven hundred seventy-one million, six hundred fifty-six thousand, nine hundred sixty-one".