2135354880 has 80 divisors (see below), whose sum is σ = 6826487184. Its totient is φ = 569425920.

The previous prime is 2135354869. The next prime is 2135354917. The reversal of 2135354880 is 884535312.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 131341 + ... + 146700.

Almost surely, 2^2135354880 is an apocalyptic number.

2135354880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135354880 is an abundant number, since it is smaller than the sum of its proper divisors (4691132304).

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

2135354880 is an equidigital number, since it uses as much as digits as its factorization.

2135354880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278067 (or 278051 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 2135354880 is about 46209.9002379360. The cubic root of 2135354880 is about 1287.7256723218.

The spelling of 2135354880 in words is "two billion, one hundred thirty-five million, three hundred fifty-four thousand, eight hundred eighty".