8037823681 has 2 divisors, whose sum is σ = 8037823682. Its totient is φ = 8037823680.

The previous prime is 8037823643. The next prime is 8037823687. The reversal of 8037823681 is 1863287308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8016516225 + 21307456 = 89535^2 + 4616^2 .

It is a cyclic number.

It is not a de Polignac number, because 8037823681 - 2⁷ = 8037823553 is a prime.

It is a super-2 number, since 2×8037823681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8037823687) by changing a digit.

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 as a sum of consecutive naturals, namely, 4018911840 + 4018911841.

It is an arithmetic number, because the mean of its divisors is an integer number (4018911841).

Almost surely, 2^8037823681 is an apocalyptic number.

It is an amenable number.

8037823681 is a deficient number, since it is larger than the sum of its proper divisors (1).

8037823681 is an equidigital number, since it uses as much as digits as its factorization.

8037823681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 8037823681 is about 89653.9105728244. The cubic root of 8037823681 is about 2003.1470189552.

The spelling of 8037823681 in words is "eight billion, thirty-seven million, eight hundred twenty-three thousand, six hundred eighty-one".