2135453568 has 32 divisors (see below), whose sum is σ = 5672299560. Its totient is φ = 711817728.

The previous prime is 2135453531. The next prime is 2135453587. The reversal of 2135453568 is 8653545312.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2780155 + ... + 2780922.

Almost surely, 2^2135453568 is an apocalyptic number.

It is an amenable number.

2135453568 is an abundant number, since it is smaller than the sum of its proper divisors (3536845992).

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

2135453568 is an equidigital number, since it uses as much as digits as its factorization.

2135453568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561094 (or 5561082 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The square root of 2135453568 is about 46210.9680487219. The cubic root of 2135453568 is about 1287.7455099477.

The spelling of 2135453568 in words is "two billion, one hundred thirty-five million, four hundred fifty-three thousand, five hundred sixty-eight".