9016919987 has 2 divisors, whose sum is σ = 9016919988. Its totient is φ = 9016919986.

The previous prime is 9016919981. The next prime is 9016919993. The reversal of 9016919987 is 7899196109.

It is a balanced prime because it is at equal distance from previous prime (9016919981) and next prime (9016919993).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9016919987 is a prime.

It is not a weakly prime, because it can be changed into another prime (9016919981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4508459993 + 4508459994.

It is an arithmetic number, because the mean of its divisors is an integer number (4508459994).

Almost surely, 2^9016919987 is an apocalyptic number.

9016919987 is a deficient number, since it is larger than the sum of its proper divisors (1).

9016919987 is an equidigital number, since it uses as much as digits as its factorization.

9016919987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2204496, while the sum is 59.

The square root of 9016919987 is about 94957.4640931401. The cubic root of 9016919987 is about 2081.3865252275.

The spelling of 9016919987 in words is "nine billion, sixteen million, nine hundred nineteen thousand, nine hundred eighty-seven".