2117048820 has 48 divisors (see below), whose sum is σ = 5930187648. Its totient is φ = 564312960.

The previous prime is 2117048789. The next prime is 2117048827. The reversal of 2117048820 is 288407112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117048827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177897 + ... + 189423.

It is an arithmetic number, because the mean of its divisors is an integer number (123545576).

Almost surely, 2^2117048820 is an apocalyptic number.

2117048820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2117048820 is an abundant number, since it is smaller than the sum of its proper divisors (3813138828).

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

2117048820 is a wasteful number, since it uses less digits than its factorization.

2117048820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14600 (or 14598 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 2117048820 is about 46011.3988050787. The cubic root of 2117048820 is about 1284.0352835288.

The spelling of 2117048820 in words is "two billion, one hundred seventeen million, forty-eight thousand, eight hundred twenty".