8486978264987 has 2 divisors, whose sum is σ = 8486978264988. Its totient is φ = 8486978264986.

The previous prime is 8486978264879. The next prime is 8486978265019. The reversal of 8486978264987 is 7894628796848.

Together with previous prime (8486978264879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8486978264987 is a prime.

It is a super-2 number, since 2×8486978264987² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8486978264899 and 8486978264908.

It is not a weakly prime, because it can be changed into another prime (8486978264087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4243489132493 + 4243489132494.

It is an arithmetic number, because the mean of its divisors is an integer number (4243489132494).

Almost surely, 2^{8486978264987} is an apocalyptic number.

8486978264987 is a deficient number, since it is larger than the sum of its proper divisors (1).

8486978264987 is an equidigital number, since it uses as much as digits as its factorization.

8486978264987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18728091648, while the sum is 86.

The spelling of 8486978264987 in words is "eight trillion, four hundred eighty-six billion, nine hundred seventy-eight million, two hundred sixty-four thousand, nine hundred eighty-seven".