2640814512 has 80 divisors (see below), whose sum is σ = 7928897280. Its totient is φ = 741724416.

The previous prime is 2640814499. The next prime is 2640814537. The reversal of 2640814512 is 2154180462.

It is a happy number.

2640814512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46783 + ... + 86430.

It is an arithmetic number, because the mean of its divisors is an integer number (99111216).

Almost surely, 2^2640814512 is an apocalyptic number.

It is an amenable number.

2640814512 is an abundant number, since it is smaller than the sum of its proper divisors (5288082768).

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

2640814512 is a wasteful number, since it uses less digits than its factorization.

2640814512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133290 (or 133284 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 2640814512 is about 51388.8559125420. The cubic root of 2640814512 is about 1382.2267683225.

Adding to 2640814512 its reverse (2154180462), we get a palindrome (4794994974).

The spelling of 2640814512 in words is "two billion, six hundred forty million, eight hundred fourteen thousand, five hundred twelve".