500019631919 has 4 divisors (see below), whose sum is σ = 511647995496. Its totient is φ = 488391268344.

The previous prime is 500019631901. The next prime is 500019631961. The reversal of 500019631919 is 919136910005.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500019631919 is a prime.

It is a super-2 number, since 2×500019631919² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 500019631919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500019651919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5814181724 + ... + 5814181809.

It is an arithmetic number, because the mean of its divisors is an integer number (127911998874).

Almost surely, 2^500019631919 is an apocalyptic number.

500019631919 is a deficient number, since it is larger than the sum of its proper divisors (11628363577).

500019631919 is a wasteful number, since it uses less digits than its factorization.

500019631919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11628363576.

The product of its (nonzero) digits is 65610, while the sum is 44.

The spelling of 500019631919 in words is "five hundred billion, nineteen million, six hundred thirty-one thousand, nine hundred nineteen".