8077698081 has 8 divisors (see below), whose sum is σ = 11966960160. Its totient is φ = 5385132036.

The previous prime is 8077698047. The next prime is 8077698113. The reversal of 8077698081 is 1808967708.

It is not a de Polignac number, because 8077698081 - 2⁶ = 8077698017 is a prime.

It is a super-2 number, since 2×8077698081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8077698011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149586975 + ... + 149587028.

It is an arithmetic number, because the mean of its divisors is an integer number (1495870020).

Almost surely, 2^8077698081 is an apocalyptic number.

It is an amenable number.

8077698081 is a deficient number, since it is larger than the sum of its proper divisors (3889262079).

8077698081 is a wasteful number, since it uses less digits than its factorization.

8077698081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299174012 (or 299174006 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The square root of 8077698081 is about 89876.0150485100. The cubic root of 8077698081 is about 2006.4539906826.

The spelling of 8077698081 in words is "eight billion, seventy-seven million, six hundred ninety-eight thousand, eighty-one".