2807638081 has 2 divisors, whose sum is σ = 2807638082. Its totient is φ = 2807638080.

The previous prime is 2807638079. The next prime is 2807638177. The reversal of 2807638081 is 1808367082.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2800103056 + 7535025 = 52916^2 + 2745^2 .

It is a cyclic number.

It is not a de Polignac number, because 2807638081 - 2¹ = 2807638079 is a prime.

It is a super-2 number, since 2×2807638081² = 15765663187762725122, which contains 22 as substring.

Together with 2807638079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2807638051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1403819040 + 1403819041.

It is an arithmetic number, because the mean of its divisors is an integer number (1403819041).

Almost surely, 2^2807638081 is an apocalyptic number.

It is an amenable number.

2807638081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2807638081 is an equidigital number, since it uses as much as digits as its factorization.

2807638081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 2807638081 is about 52987.1501498241. The cubic root of 2807638081 is about 1410.7401980126.

The spelling of 2807638081 in words is "two billion, eight hundred seven million, six hundred thirty-eight thousand, eighty-one".