5640637512 has 32 divisors (see below), whose sum is σ = 14230972800. Its totient is φ = 1862961984.

The previous prime is 5640637481. The next prime is 5640637517. The reversal of 5640637512 is 2157360465.

It is not an unprimeable number, because it can be changed into a prime (5640637517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1075488 + ... + 1080719.

It is an arithmetic number, because the mean of its divisors is an integer number (444717900).

Almost surely, 2^5640637512 is an apocalyptic number.

It is an amenable number.

5640637512 is an abundant number, since it is smaller than the sum of its proper divisors (8590335288).

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

5640637512 is a wasteful number, since it uses less digits than its factorization.

5640637512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156325 (or 2156321 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 5640637512 is about 75104.1777266751. The cubic root of 5640637512 is about 1780.0931559208.

Adding to 5640637512 its reverse (2157360465), we get a palindrome (7797997977).

The spelling of 5640637512 in words is "five billion, six hundred forty million, six hundred thirty-seven thousand, five hundred twelve".