2128015531626 has 48 divisors (see below), whose sum is σ = 4494349664064. Its totient is φ = 671626790208.

The previous prime is 2128015531597. The next prime is 2128015531643. The reversal of 2128015531626 is 6261355108212.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3586470 + ... + 4137486.

It is an arithmetic number, because the mean of its divisors is an integer number (93632284668).

Almost surely, 2^{2128015531626} is an apocalyptic number.

2128015531626 is an abundant number, since it is smaller than the sum of its proper divisors (2366334132438).

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

2128015531626 is a wasteful number, since it uses less digits than its factorization.

2128015531626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552843 (or 552824 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 2128015531626 in words is "two trillion, one hundred twenty-eight billion, fifteen million, five hundred thirty-one thousand, six hundred twenty-six".