2668521532 has 18 divisors (see below), whose sum is σ = 4723029248. Its totient is φ = 1319253408.

The previous prime is 2668521521. The next prime is 2668521577. The reversal of 2668521532 is 2351258662.

It is a happy number.

2668521532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10428 + ... + 73795.

Almost surely, 2^2668521532 is an apocalyptic number.

It is an amenable number.

2668521532 is a deficient number, since it is larger than the sum of its proper divisors (2054507716).

2668521532 is an equidigital number, since it uses as much as digits as its factorization.

2668521532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84405 (or 84314 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 2668521532 is about 51657.7344838118. The cubic root of 2668521532 is about 1387.0439971302.

The spelling of 2668521532 in words is "two billion, six hundred sixty-eight million, five hundred twenty-one thousand, five hundred thirty-two".