2087405568 has 144 divisors (see below), whose sum is σ = 6065595900. Its totient is φ = 691568640.

The previous prime is 2087405563. The next prime is 2087405591. The reversal of 2087405568 is 8655047802.

2087405568 is a `hidden beast` number, since 2 + 0 + 87 + 4 + 0 + 5 + 568 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1380271104 + 707134464 = 37152^2 + 26592^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (2087405563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4957998 + ... + 4958418.

Almost surely, 2^2087405568 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 2087405568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3032797950).

2087405568 is an abundant number, since it is smaller than the sum of its proper divisors (3978190332).

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

2087405568 is a wasteful number, since it uses less digits than its factorization.

2087405568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 2087405568 is about 45688.1337767259. The cubic root of 2087405568 is about 1278.0140035348.

The spelling of 2087405568 in words is "two billion, eighty-seven million, four hundred five thousand, five hundred sixty-eight".