502221420687672 has 288 divisors, whose sum is σ = 1606089864197520. Its totient is φ = 141330763284480.

The previous prime is 502221420687659. The next prime is 502221420687703. The reversal of 502221420687672 is 276786024122205.

502221420687672 is a `hidden beast` number, since 5 + 0 + 2 + 2 + 21 + 420 + 68 + 76 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1767241272 + ... + 1767525432.

Almost surely, 2^{502221420687672} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 502221420687672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803044932098760).

502221420687672 is an abundant number, since it is smaller than the sum of its proper divisors (1103868443509848).

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

502221420687672 is a wasteful number, since it uses less digits than its factorization.

502221420687672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291731 (or 291717 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 502221420687672 in words is "five hundred two trillion, two hundred twenty-one billion, four hundred twenty million, six hundred eighty-seven thousand, six hundred seventy-two".