1791876868 has 12 divisors (see below), whose sum is σ = 3139572940. Its totient is φ = 894856032.

The previous prime is 1791876859. The next prime is 1791876869. The reversal of 1791876868 is 8686781971.

It can be written as a sum of positive squares in 2 ways, for example, as 359405764 + 1432471104 = 18958^2 + 37848^2 .

It is not an unprimeable number, because it can be changed into a prime (1791876869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266871 + ... + 273502.

Almost surely, 2^1791876868 is an apocalyptic number.

It is an amenable number.

1791876868 is a deficient number, since it is larger than the sum of its proper divisors (1347696072).

1791876868 is a wasteful number, since it uses less digits than its factorization.

1791876868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541206 (or 541204 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 61.

The square root of 1791876868 is about 42330.5665920030. The cubic root of 1791876868 is about 1214.6077680778.

The spelling of 1791876868 in words is "one billion, seven hundred ninety-one million, eight hundred seventy-six thousand, eight hundred sixty-eight".