640051024503 has 8 divisors (see below), whose sum is σ = 930983308416. Its totient is φ = 387909711800.

The previous prime is 640051024463. The next prime is 640051024511. The reversal of 640051024503 is 305420150046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 640051024503 - 2¹⁸ = 640050762359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640051024303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9697742763 + ... + 9697742828.

It is an arithmetic number, because the mean of its divisors is an integer number (116372913552).

Almost surely, 2^640051024503 is an apocalyptic number.

640051024503 is a deficient number, since it is larger than the sum of its proper divisors (290932283913).

640051024503 is a wasteful number, since it uses less digits than its factorization.

640051024503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19395485605.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 640051024503 its reverse (305420150046), we get a palindrome (945471174549).

The spelling of 640051024503 in words is "six hundred forty billion, fifty-one million, twenty-four thousand, five hundred three".