2128523488 has 384 divisors, whose sum is σ = 6015098880. Its totient is φ = 716636160.

The previous prime is 2128523473. The next prime is 2128523533. The reversal of 2128523488 is 8843258212.

It is a super-2 number, since 2×2128523488² = 9061224477935372288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29157820 + ... + 29157892.

It is an arithmetic number, because the mean of its divisors is an integer number (15664320).

Almost surely, 2^2128523488 is an apocalyptic number.

2128523488 is a gapful number since it is divisible by the number (28) 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 2128523488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3007549440).

2128523488 is an abundant number, since it is smaller than the sum of its proper divisors (3886575392).

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

2128523488 is a wasteful number, since it uses less digits than its factorization.

2128523488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 162 counting only the distinct ones).

The product of its digits is 245760, while the sum is 43.

The square root of 2128523488 is about 46135.9240505704. The cubic root of 2128523488 is about 1286.3509817609.

The spelling of 2128523488 in words is "two billion, one hundred twenty-eight million, five hundred twenty-three thousand, four hundred eighty-eight".