8127664933 has 2 divisors, whose sum is σ = 8127664934. Its totient is φ = 8127664932.

The previous prime is 8127664921. The next prime is 8127665041. The reversal of 8127664933 is 3394667218.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6202035009 + 1925629924 = 78753^2 + 43882^2 .

It is a cyclic number.

It is not a de Polignac number, because 8127664933 - 2⁵ = 8127664901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8127664913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4063832466 + 4063832467.

It is an arithmetic number, because the mean of its divisors is an integer number (4063832467).

Almost surely, 2^8127664933 is an apocalyptic number.

It is an amenable number.

8127664933 is a deficient number, since it is larger than the sum of its proper divisors (1).

8127664933 is an equidigital number, since it uses as much as digits as its factorization.

8127664933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 49.

The square root of 8127664933 is about 90153.5630632534. The cubic root of 8127664933 is about 2010.5826494176.

The spelling of 8127664933 in words is "eight billion, one hundred twenty-seven million, six hundred sixty-four thousand, nine hundred thirty-three".