2113713856 has 56 divisors (see below), whose sum is σ = 4309018560. Its totient is φ = 1028366592.

The previous prime is 2113713841. The next prime is 2113713857. The reversal of 2113713856 is 6583173112.

It is not an unprimeable number, because it can be changed into a prime (2113713857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352935 + ... + 358873.

It is an arithmetic number, because the mean of its divisors is an integer number (76946760).

Almost surely, 2^2113713856 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 2113713856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2154509280).

2113713856 is an abundant number, since it is smaller than the sum of its proper divisors (2195304704).

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

2113713856 is an equidigital number, since it uses as much as digits as its factorization.

2113713856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6101 (or 6091 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 2113713856 is about 45975.1438931952. The cubic root of 2113713856 is about 1283.3606869003.

Adding to 2113713856 its reverse (6583173112), we get a palindrome (8696886968).

The spelling of 2113713856 in words is "two billion, one hundred thirteen million, seven hundred thirteen thousand, eight hundred fifty-six".