2119871700 has 108 divisors (see below), whose sum is σ = 6653949120. Its totient is φ = 564505920.

The previous prime is 2119871683. The next prime is 2119871731. The reversal of 2119871700 is 71789112.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 933967 + ... + 936233.

It is an arithmetic number, because the mean of its divisors is an integer number (61610640).

Almost surely, 2^2119871700 is an apocalyptic number.

2119871700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2119871700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3326974560).

2119871700 is an abundant number, since it is smaller than the sum of its proper divisors (4534077420).

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

2119871700 is a wasteful number, since it uses less digits than its factorization.

2119871700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326 (or 3316 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 36.

The square root of 2119871700 is about 46042.0644628366. The cubic root of 2119871700 is about 1284.6057423718.

The spelling of 2119871700 in words is "two billion, one hundred nineteen million, eight hundred seventy-one thousand, seven hundred".