2117859048 has 240 divisors, whose sum is σ = 6472493280. Its totient is φ = 646507008.

The previous prime is 2117859047. The next prime is 2117859119. The reversal of 2117859048 is 8409587112.

2117859048 is a `hidden beast` number, since 2 + 1 + 17 + 8 + 590 + 48 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2117858994 and 2117859012.

It is not an unprimeable number, because it can be changed into a prime (2117859043) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 8052565 + ... + 8052827.

It is an arithmetic number, because the mean of its divisors is an integer number (26968722).

Almost surely, 2^2117859048 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 2117859048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3236246640).

2117859048 is an abundant number, since it is smaller than the sum of its proper divisors (4354634232).

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

2117859048 is a wasteful number, since it uses less digits than its factorization.

2117859048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 2117859048 is about 46020.2026071159. The cubic root of 2117859048 is about 1284.1990694931.

The spelling of 2117859048 in words is "two billion, one hundred seventeen million, eight hundred fifty-nine thousand, forty-eight".