8771121941 has 2 divisors, whose sum is σ = 8771121942. Its totient is φ = 8771121940.

The previous prime is 8771121937. The next prime is 8771121973. The reversal of 8771121941 is 1491211778.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4767902500 + 4003219441 = 69050^2 + 63271^2 .

It is a cyclic number.

It is not a de Polignac number, because 8771121941 - 2² = 8771121937 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8771121901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4385560970 + 4385560971.

It is an arithmetic number, because the mean of its divisors is an integer number (4385560971).

Almost surely, 2^8771121941 is an apocalyptic number.

It is an amenable number.

8771121941 is a deficient number, since it is larger than the sum of its proper divisors (1).

8771121941 is an equidigital number, since it uses as much as digits as its factorization.

8771121941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 41.

The square root of 8771121941 is about 93654.2681408594. The cubic root of 8771121941 is about 2062.2994040894.

The spelling of 8771121941 in words is "eight billion, seven hundred seventy-one million, one hundred twenty-one thousand, nine hundred forty-one".