2128792406871 has 16 divisors (see below), whose sum is σ = 3061830643200. Its totient is φ = 1307839060320.

The previous prime is 2128792406863. The next prime is 2128792406879. The reversal of 2128792406871 is 1786042978212.

It is an interprime number because it is at equal distance from previous prime (2128792406863) and next prime (2128792406879).

It is not a de Polignac number, because 2128792406871 - 2³ = 2128792406863 is a prime.

It is a super-2 number, since 2×2128792406871² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128792406879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45539595 + ... + 45586316.

It is an arithmetic number, because the mean of its divisors is an integer number (191364415200).

Almost surely, 2^{2128792406871} is an apocalyptic number.

2128792406871 is a deficient number, since it is larger than the sum of its proper divisors (933038236329).

2128792406871 is a wasteful number, since it uses less digits than its factorization.

2128792406871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91126526.

The product of its (nonzero) digits is 5419008, while the sum is 57.

The spelling of 2128792406871 in words is "two trillion, one hundred twenty-eight billion, seven hundred ninety-two million, four hundred six thousand, eight hundred seventy-one".