8861512867 has 2 divisors, whose sum is σ = 8861512868. Its totient is φ = 8861512866.

The previous prime is 8861512823. The next prime is 8861512889. The reversal of 8861512867 is 7682151688.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8861512867 is a prime.

It is not a weakly prime, because it can be changed into another prime (8861512897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4430756433 + 4430756434.

It is an arithmetic number, because the mean of its divisors is an integer number (4430756434).

Almost surely, 2^8861512867 is an apocalyptic number.

8861512867 is a deficient number, since it is larger than the sum of its proper divisors (1).

8861512867 is an equidigital number, since it uses as much as digits as its factorization.

8861512867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 52.

The square root of 8861512867 is about 94135.6089213853. The cubic root of 8861512867 is about 2069.3595587714.

The spelling of 8861512867 in words is "eight billion, eight hundred sixty-one million, five hundred twelve thousand, eight hundred sixty-seven".