500172021887 has 8 divisors (see below), whose sum is σ = 512381067072. Its totient is φ = 487963440000.

The previous prime is 500172021809. The next prime is 500172021893. The reversal of 500172021887 is 788120271005.

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 500172021887 - 2¹⁸ = 500171759743 is a prime.

It is a super-3 number, since 3×500172021887³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500172021187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3245738 + ... + 3396344.

It is an arithmetic number, because the mean of its divisors is an integer number (64047633384).

Almost surely, 2^500172021887 is an apocalyptic number.

500172021887 is a deficient number, since it is larger than the sum of its proper divisors (12209045185).

500172021887 is a wasteful number, since it uses less digits than its factorization.

500172021887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231649.

The product of its (nonzero) digits is 62720, while the sum is 41.

The spelling of 500172021887 in words is "five hundred billion, one hundred seventy-two million, twenty-one thousand, eight hundred eighty-seven".