2159504128 has 72 divisors (see below), whose sum is σ = 4578764400. Its totient is φ = 1013612544.

The previous prime is 2159504089. The next prime is 2159504131. The reversal of 2159504128 is 8214059512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547668 + ... + 551596.

It is an arithmetic number, because the mean of its divisors is an integer number (63593950).

Almost surely, 2^2159504128 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 2159504128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2289382200).

2159504128 is an abundant number, since it is smaller than the sum of its proper divisors (2419260272).

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

2159504128 is a wasteful number, since it uses less digits than its factorization.

2159504128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077 (or 4063 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 2159504128 is about 46470.4651149523. The cubic root of 2159504128 is about 1292.5618875746.

The spelling of 2159504128 in words is "two billion, one hundred fifty-nine million, five hundred four thousand, one hundred twenty-eight".