987983059361 has 2 divisors, whose sum is σ = 987983059362. Its totient is φ = 987983059360.

The previous prime is 987983059307. The next prime is 987983059381. The reversal of 987983059361 is 163950389789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 540496984225 + 447486075136 = 735185^2 + 668944^2 .

It is an emirp because it is prime and its reverse (163950389789) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-987983059361 is a prime.

It is a super-2 number, since 2×987983059361² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 987983059291 and 987983059300.

It is not a weakly prime, because it can be changed into another prime (987983059381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493991529680 + 493991529681.

It is an arithmetic number, because the mean of its divisors is an integer number (493991529681).

Almost surely, 2^987983059361 is an apocalyptic number.

It is an amenable number.

987983059361 is a deficient number, since it is larger than the sum of its proper divisors (1).

987983059361 is an equidigital number, since it uses as much as digits as its factorization.

987983059361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88179840, while the sum is 68.

The spelling of 987983059361 in words is "nine hundred eighty-seven billion, nine hundred eighty-three million, fifty-nine thousand, three hundred sixty-one".