2191258875 has 64 divisors (see below), whose sum is σ = 4097673216. Its totient is φ = 1031817600.

The previous prime is 2191258873. The next prime is 2191258903. The reversal of 2191258875 is 5788521912.

It is not a de Polignac number, because 2191258875 - 2¹ = 2191258873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2191258873) 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 in 63 ways as a sum of consecutive naturals, for example, 102354 + ... + 121896.

It is an arithmetic number, because the mean of its divisors is an integer number (64026144).

Almost surely, 2^2191258875 is an apocalyptic number.

2191258875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2191258875 is a deficient number, since it is larger than the sum of its proper divisors (1906414341).

2191258875 is a wasteful number, since it uses less digits than its factorization.

2191258875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19597 (or 19587 counting only the distinct ones).

The product of its digits is 403200, while the sum is 48.

The square root of 2191258875 is about 46810.8841510177. The cubic root of 2191258875 is about 1298.8666404123.

The spelling of 2191258875 in words is "two billion, one hundred ninety-one million, two hundred fifty-eight thousand, eight hundred seventy-five".