2128491024726 has 32 divisors (see below), whose sum is σ = 4644637459200. Its totient is φ = 644906024480.

The previous prime is 2128491024683. The next prime is 2128491024763. The reversal of 2128491024726 is 6274201948212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1810641 + ... + 2745068.

It is an arithmetic number, because the mean of its divisors is an integer number (145144920600).

Almost surely, 2^{2128491024726} is an apocalyptic number.

2128491024726 is an abundant number, since it is smaller than the sum of its proper divisors (2516146434474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2128491024726 is a wasteful number, since it uses less digits than its factorization.

2128491024726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4562804.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 2128491024726 in words is "two trillion, one hundred twenty-eight billion, four hundred ninety-one million, twenty-four thousand, seven hundred twenty-six".