500018685522 has 16 divisors (see below), whose sum is σ = 1000927889760. Its totient is φ = 166524475392.

The previous prime is 500018685457. The next prime is 500018685541. The reversal of 500018685522 is 225586810005.

It is a super-2 number, since 2×500018685522² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37097647 + ... + 37111122.

It is an arithmetic number, because the mean of its divisors is an integer number (62557993110).

Almost surely, 2^500018685522 is an apocalyptic number.

500018685522 is an abundant number, since it is smaller than the sum of its proper divisors (500909204238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

500018685522 is a wasteful number, since it uses less digits than its factorization.

500018685522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74209897.

The product of its (nonzero) digits is 192000, while the sum is 42.

The spelling of 500018685522 in words is "five hundred billion, eighteen million, six hundred eighty-five thousand, five hundred twenty-two".