299884378689 has 81 divisors (see below), whose sum is σ = 511357855593. Its totient is φ = 168858797184.

The previous prime is 299884378679. The next prime is 299884378691. The reversal of 299884378689 is 986873488992.

The square root of 299884378689 is 547617.

It is a perfect power (a square), and thus also a powerful number.

299884378689 is a `hidden beast` number, since 2 + 9 + 98 + 84 + 378 + 6 + 89 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 14202680625 + 285681698064 = 119175^2 + 534492^2 .

It is not a de Polignac number, because 299884378689 - 2¹¹ = 299884376641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (299884378679) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1023496027 + ... + 1023496319.

Almost surely, 2^299884378689 is an apocalyptic number.

299884378689 is the 547617-th square number.

299884378689 is the 273809-th centered octagonal number.

It is an amenable number.

299884378689 is a deficient number, since it is larger than the sum of its proper divisors (211473476904).

299884378689 is an frugal number, since it uses more digits than its factorization.

299884378689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784 (or 392 counting only the distinct ones).

The product of its digits is 3009871872, while the sum is 81.

Multiplying 299884378689 by its sum of digits (81), we get a square (24290634673809 = 4928553²).

The spelling of 299884378689 in words is "two hundred ninety-nine billion, eight hundred eighty-four million, three hundred seventy-eight thousand, six hundred eighty-nine".