2143040856871 has 8 divisors (see below), whose sum is σ = 2148955822080. Its totient is φ = 2137127556792.

The previous prime is 2143040856863. The next prime is 2143040856917. The reversal of 2143040856871 is 1786580403412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2143040856871 - 2³ = 2143040856863 is a prime.

It is a super-2 number, since 2×2143040856871² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143040856371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2183656 + ... + 3009058.

It is an arithmetic number, because the mean of its divisors is an integer number (268619477760).

Almost surely, 2^{2143040856871} is an apocalyptic number.

2143040856871 is a deficient number, since it is larger than the sum of its proper divisors (5914965209).

2143040856871 is an equidigital number, since it uses as much as digits as its factorization.

2143040856871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832565.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 2143040856871 in words is "two trillion, one hundred forty-three billion, forty million, eight hundred fifty-six thousand, eight hundred seventy-one".