986817553973 has 2 divisors, whose sum is σ = 986817553974. Its totient is φ = 986817553972.

The previous prime is 986817553873. The next prime is 986817553979. The reversal of 986817553973 is 379355718689.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 878460056644 + 108357497329 = 937262^2 + 329177^2 .

It is a cyclic number.

It is not a de Polignac number, because 986817553973 - 2²⁰ = 986816505397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 986817553897 and 986817553906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (986817553979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493408776986 + 493408776987.

It is an arithmetic number, because the mean of its divisors is an integer number (493408776987).

Almost surely, 2^986817553973 is an apocalyptic number.

It is an amenable number.

986817553973 is a deficient number, since it is larger than the sum of its proper divisors (1).

986817553973 is an equidigital number, since it uses as much as digits as its factorization.

986817553973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 342921600, while the sum is 71.

The spelling of 986817553973 in words is "nine hundred eighty-six billion, eight hundred seventeen million, five hundred fifty-three thousand, nine hundred seventy-three".