2100696256 has 56 divisors (see below), whose sum is σ = 4426646976. Its totient is φ = 985681920.

The previous prime is 2100696251. The next prime is 2100696271. The reversal of 2100696256 is 6526960012.

It is not an unprimeable number, because it can be changed into a prime (2100696251) 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, 396666 + ... + 401926.

Almost surely, 2^2100696256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2100696256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2213323488).

2100696256 is an abundant number, since it is smaller than the sum of its proper divisors (2325950720).

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

2100696256 is a wasteful number, since it uses less digits than its factorization.

2100696256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5657 (or 5647 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 2100696256 is about 45833.3530957533. The cubic root of 2100696256 is about 1280.7206748934.

The spelling of 2100696256 in words is "two billion, one hundred million, six hundred ninety-six thousand, two hundred fifty-six".