9981469736087 has 2 divisors, whose sum is σ = 9981469736088. Its totient is φ = 9981469736086.

The previous prime is 9981469736053. The next prime is 9981469736089. The reversal of 9981469736087 is 7806379641899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9981469736087 - 2¹⁴ = 9981469719703 is a prime.

Together with 9981469736089, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9981469735999 and 9981469736017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9981469736089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4990734868043 + 4990734868044.

It is an arithmetic number, because the mean of its divisors is an integer number (4990734868044).

Almost surely, 2^{9981469736087} is an apocalyptic number.

9981469736087 is a deficient number, since it is larger than the sum of its proper divisors (1).

9981469736087 is an equidigital number, since it uses as much as digits as its factorization.

9981469736087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987614208, while the sum is 77.

The spelling of 9981469736087 in words is "nine trillion, nine hundred eighty-one billion, four hundred sixty-nine million, seven hundred thirty-six thousand, eighty-seven".