99887783273 has 2 divisors, whose sum is σ = 99887783274. Its totient is φ = 99887783272.

The previous prime is 99887783263. The next prime is 99887783287. The reversal of 99887783273 is 37238778899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57884510464 + 42003272809 = 240592^2 + 204947^2 .

It is a cyclic number.

It is not a de Polignac number, because 99887783273 - 2⁴ = 99887783257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99887783197 and 99887783206.

It is not a weakly prime, because it can be changed into another prime (99887783263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49943891636 + 49943891637.

It is an arithmetic number, because the mean of its divisors is an integer number (49943891637).

Almost surely, 2^99887783273 is an apocalyptic number.

It is an amenable number.

99887783273 is a deficient number, since it is larger than the sum of its proper divisors (1).

99887783273 is an equidigital number, since it uses as much as digits as its factorization.

99887783273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 256048128, while the sum is 71.

The spelling of 99887783273 in words is "ninety-nine billion, eight hundred eighty-seven million, seven hundred eighty-three thousand, two hundred seventy-three".