1089165086987 has 2 divisors, whose sum is σ = 1089165086988. Its totient is φ = 1089165086986.

The previous prime is 1089165086929. The next prime is 1089165087001. The reversal of 1089165086987 is 7896805619801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1089165086987 - 2³² = 1084870119691 is a prime.

It is a super-2 number, since 2×1089165086987² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1089165086587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544582543493 + 544582543494.

It is an arithmetic number, because the mean of its divisors is an integer number (544582543494).

Almost surely, 2^{1089165086987} is an apocalyptic number.

1089165086987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089165086987 is an equidigital number, since it uses as much as digits as its factorization.

1089165086987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52254720, while the sum is 68.

The spelling of 1089165086987 in words is "one trillion, eighty-nine billion, one hundred sixty-five million, eighty-six thousand, nine hundred eighty-seven".