2128695536 has 40 divisors (see below), whose sum is σ = 4501878528. Its totient is φ = 967032000.

The previous prime is 2128695487. The next prime is 2128695539. The reversal of 2128695536 is 6355968212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128695539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584441 + ... + 588071.

Almost surely, 2^2128695536 is an apocalyptic number.

It is an amenable number.

2128695536 is an abundant number, since it is smaller than the sum of its proper divisors (2373182992).

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

2128695536 is a wasteful number, since it uses less digits than its factorization.

2128695536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6981 (or 6975 counting only the distinct ones).

The product of its digits is 777600, while the sum is 47.

The square root of 2128695536 is about 46137.7885902651. The cubic root of 2128695536 is about 1286.3856392989.

The spelling of 2128695536 in words is "two billion, one hundred twenty-eight million, six hundred ninety-five thousand, five hundred thirty-six".