640053030513 has 32 divisors (see below), whose sum is σ = 963828633600. Its totient is φ = 374860284480.

The previous prime is 640053030499. The next prime is 640053030523. The reversal of 640053030513 is 315030350046.

It is a happy number.

It is not a de Polignac number, because 640053030513 - 2⁴ = 640053030497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (640053030523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1614333 + ... + 1971338.

It is an arithmetic number, because the mean of its divisors is an integer number (30119644800).

Almost surely, 2^640053030513 is an apocalyptic number.

It is an amenable number.

640053030513 is a deficient number, since it is larger than the sum of its proper divisors (323775603087).

640053030513 is a wasteful number, since it uses less digits than its factorization.

640053030513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585909.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 640053030513 its reverse (315030350046), we get a palindrome (955083380559).

The spelling of 640053030513 in words is "six hundred forty billion, fifty-three million, thirty thousand, five hundred thirteen".