8008681077 has 6 divisors (see below), whose sum is σ = 11568094902. Its totient is φ = 5339120712.

The previous prime is 8008681069. The next prime is 8008681091. The reversal of 8008681077 is 7701868008.

It can be written as a sum of positive squares in only one way, i.e., 4293656676 + 3715024401 = 65526^2 + 60951^2 .

It is not a de Polignac number, because 8008681077 - 2³ = 8008681069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8008681477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 444926718 + ... + 444926735.

It is an arithmetic number, because the mean of its divisors is an integer number (1928015817).

Almost surely, 2^8008681077 is an apocalyptic number.

It is an amenable number.

8008681077 is a deficient number, since it is larger than the sum of its proper divisors (3559413825).

8008681077 is a wasteful number, since it uses less digits than its factorization.

8008681077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889853459 (or 889853456 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The square root of 8008681077 is about 89491.2346378124. The cubic root of 8008681077 is about 2000.7231615705.

The spelling of 8008681077 in words is "eight billion, eight million, six hundred eighty-one thousand, seventy-seven".