572120317786920 has 256 divisors, whose sum is σ = 1974753844231680. Its totient is φ = 129891885772800.

The previous prime is 572120317786889. The next prime is 572120317786949. The reversal of 572120317786920 is 29687713021275.

It is a happy number.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 152329210 + ... + 156039830.

It is an arithmetic number, because the mean of its divisors is an integer number (7713882204030).

Almost surely, 2^{572120317786920} 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 572120317786920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (987376922115840).

572120317786920 is an abundant number, since it is smaller than the sum of its proper divisors (1402633526444760).

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

572120317786920 is a wasteful number, since it uses less digits than its factorization.

572120317786920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711876 (or 3711872 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 60.

The spelling of 572120317786920 in words is "five hundred seventy-two trillion, one hundred twenty billion, three hundred seventeen million, seven hundred eighty-six thousand, nine hundred twenty".