538601884020 has 144 divisors (see below), whose sum is σ = 1720683095040. Its totient is φ = 135993731328.

The previous prime is 538601883973. The next prime is 538601884061. The reversal of 538601884020 is 20488106835.

538601884020 is a `hidden beast` number, since 5 + 3 + 8 + 60 + 188 + 402 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6377389 + ... + 6461291.

It is an arithmetic number, because the mean of its divisors is an integer number (11949188160).

Almost surely, 2^538601884020 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 538601884020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (860341547520).

538601884020 is an abundant number, since it is smaller than the sum of its proper divisors (1182081211020).

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

538601884020 is a wasteful number, since it uses less digits than its factorization.

538601884020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85814 (or 85809 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 538601884020 in words is "five hundred thirty-eight billion, six hundred one million, eight hundred eighty-four thousand, twenty".