528371979664 has 45 divisors (see below), whose sum is σ = 1070300970529. Its totient is φ = 252667659200.

The previous prime is 528371979661. The next prime is 528371979671. The reversal of 528371979664 is 466979173825.

The square root of 528371979664 is 726892.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 363015890064 + 165356089600 = 602508^2 + 406640^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 528371979664.

It is not an unprimeable number, because it can be changed into a prime (528371979661) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 66870114 + ... + 66878014.

Almost surely, 2^528371979664 is an apocalyptic number.

528371979664 is the 726892-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 528371979664

528371979664 is an abundant number, since it is smaller than the sum of its proper divisors (541928990865).

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

528371979664 is an frugal number, since it uses more digits than its factorization.

528371979664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15856 (or 7926 counting only the distinct ones).

The product of its digits is 137168640, while the sum is 67.

The spelling of 528371979664 in words is "five hundred twenty-eight billion, three hundred seventy-one million, nine hundred seventy-nine thousand, six hundred sixty-four".