2186971241875 has 40 divisors (see below), whose sum is σ = 3125642674176. Its totient is φ = 1498486116000.

The previous prime is 2186971241863. The next prime is 2186971241879. The reversal of 2186971241875 is 5781421796812.

It is a de Polignac number, because none of the positive numbers 2^k-2186971241875 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2186971241879) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5526894 + ... + 5909356.

Almost surely, 2^{2186971241875} is an apocalyptic number.

2186971241875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2186971241875 is a deficient number, since it is larger than the sum of its proper divisors (938671432301).

2186971241875 is an equidigital number, since it uses as much as digits as its factorization.

2186971241875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383797 (or 383782 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 61.

The spelling of 2186971241875 in words is "two trillion, one hundred eighty-six billion, nine hundred seventy-one million, two hundred forty-one thousand, eight hundred seventy-five".