8681077499 has 2 divisors, whose sum is σ = 8681077500. Its totient is φ = 8681077498.

The previous prime is 8681077481. The next prime is 8681077571. The reversal of 8681077499 is 9947701868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8681077499 - 2¹² = 8681073403 is a prime.

It is a super-2 number, since 2×8681077499² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8681077439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4340538749 + 4340538750.

It is an arithmetic number, because the mean of its divisors is an integer number (4340538750).

Almost surely, 2^8681077499 is an apocalyptic number.

8681077499 is a deficient number, since it is larger than the sum of its proper divisors (1).

8681077499 is an equidigital number, since it uses as much as digits as its factorization.

8681077499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6096384, while the sum is 59.

The square root of 8681077499 is about 93172.3000628406. The cubic root of 8681077499 is about 2055.2179189264.

The spelling of 8681077499 in words is "eight billion, six hundred eighty-one million, seventy-seven thousand, four hundred ninety-nine".