538143361280 has 576 divisors, whose sum is σ = 1599268769280. Its totient is φ = 169315663872.

The previous prime is 538143361207. The next prime is 538143361307. The reversal of 538143361280 is 82163341835.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2093942912 + ... + 2093943168.

It is an arithmetic number, because the mean of its divisors is an integer number (2776508280).

Almost surely, 2^538143361280 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 538143361280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (799634384640).

538143361280 is an abundant number, since it is smaller than the sum of its proper divisors (1061125408000).

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

538143361280 is a wasteful number, since it uses less digits than its factorization.

538143361280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 538143361280 in words is "five hundred thirty-eight billion, one hundred forty-three million, three hundred sixty-one thousand, two hundred eighty".