2188159488 has 160 divisors (see below), whose sum is σ = 6858846720. Its totient is φ = 686407680.

The previous prime is 2188159483. The next prime is 2188159543. The reversal of 2188159488 is 8849518812.

2188159488 is a `hidden beast` number, since 2 + 1 + 8 + 8 + 159 + 488 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2188159483) 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, 230353 + ... + 239663.

It is an arithmetic number, because the mean of its divisors is an integer number (42867792).

Almost surely, 2^2188159488 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 2188159488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3429423360).

2188159488 is an abundant number, since it is smaller than the sum of its proper divisors (4670687232).

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

2188159488 is an equidigital number, since it uses as much as digits as its factorization.

2188159488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9355 (or 9333 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 54.

The square root of 2188159488 is about 46777.7670266549. The cubic root of 2188159488 is about 1298.2539652144.

The spelling of 2188159488 in words is "two billion, one hundred eighty-eight million, one hundred fifty-nine thousand, four hundred eighty-eight".