2135548688 has 80 divisors (see below), whose sum is σ = 5133004800. Its totient is φ = 838107648.

The previous prime is 2135548637. The next prime is 2135548699. The reversal of 2135548688 is 8868455312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179138 + ... + 190686.

It is an arithmetic number, because the mean of its divisors is an integer number (64162560).

Almost surely, 2^2135548688 is an apocalyptic number.

2135548688 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 2135548688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2566502400).

2135548688 is an abundant number, since it is smaller than the sum of its proper divisors (2997456112).

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

2135548688 is a wasteful number, since it uses less digits than its factorization.

2135548688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11704 (or 11698 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 50.

The square root of 2135548688 is about 46211.9972301566. The cubic root of 2135548688 is about 1287.7646297787.

The spelling of 2135548688 in words is "two billion, one hundred thirty-five million, five hundred forty-eight thousand, six hundred eighty-eight".