2100783356 has 24 divisors (see below), whose sum is σ = 4212673920. Its totient is φ = 897955632.

The previous prime is 2100783353. The next prime is 2100783367. The reversal of 2100783356 is 6533870012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100783353) 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, 88370 + ... + 109593.

It is an arithmetic number, because the mean of its divisors is an integer number (175528080).

Almost surely, 2^2100783356 is an apocalyptic number.

It is an amenable number.

2100783356 is an abundant number, since it is smaller than the sum of its proper divisors (2111890564).

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

2100783356 is a wasteful number, since it uses less digits than its factorization.

2100783356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198353 (or 198351 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 2100783356 is about 45834.3032673128. The cubic root of 2100783356 is about 1280.7383752517.

The spelling of 2100783356 in words is "two billion, one hundred million, seven hundred eighty-three thousand, three hundred fifty-six".