500609979851 has 4 divisors (see below), whose sum is σ = 500612913600. Its totient is φ = 500607046104.

The previous prime is 500609979847. The next prime is 500609979893. The reversal of 500609979851 is 158979906005.

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

It is a cyclic number.

It is not a de Polignac number, because 500609979851 - 2² = 500609979847 is a prime.

It is a super-2 number, since 2×500609979851² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500609979811) 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, 1193996 + ... + 1557833.

It is an arithmetic number, because the mean of its divisors is an integer number (125153228400).

Almost surely, 2^500609979851 is an apocalyptic number.

500609979851 is a deficient number, since it is larger than the sum of its proper divisors (2933749).

500609979851 is a wasteful number, since it uses less digits than its factorization.

500609979851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933748.

The product of its (nonzero) digits is 6123600, while the sum is 59.

The spelling of 500609979851 in words is "five hundred billion, six hundred nine million, nine hundred seventy-nine thousand, eight hundred fifty-one".