1009791875 has 20 divisors (see below), whose sum is σ = 1264845120. Its totient is φ = 805908000.

The previous prime is 1009791863. The next prime is 1009791877. The reversal of 1009791875 is 5781979001.

It is not a de Polignac number, because 1009791875 - 2¹⁰ = 1009790851 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (1009791877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 297689 + ... + 301061.

It is an arithmetic number, because the mean of its divisors is an integer number (63242256).

Almost surely, 2^1009791875 is an apocalyptic number.

1009791875 is a deficient number, since it is larger than the sum of its proper divisors (255053245).

1009791875 is an frugal number, since it uses more digits than its factorization.

1009791875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3872 (or 3857 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 47.

The square root of 1009791875 is about 31777.2225815914. Note that the first 3 decimals coincide. The cubic root of 1009791875 is about 1003.2533624876.

The spelling of 1009791875 in words is "one billion, nine million, seven hundred ninety-one thousand, eight hundred seventy-five".