528042921448 has 80 divisors (see below), whose sum is σ = 1165626346500. Its totient is φ = 224227035648.

The previous prime is 528042921443. The next prime is 528042921533. The reversal of 528042921448 is 844129240825.

It can be written as a sum of positive squares in 2 ways, for example, as 447884854564 + 80158066884 = 669242^2 + 283122^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (528042921443) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1967568 + ... + 2219776.

Almost surely, 2^528042921448 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 528042921448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582813173250).

528042921448 is an abundant number, since it is smaller than the sum of its proper divisors (637583425052).

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

528042921448 is a wasteful number, since it uses less digits than its factorization.

528042921448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252352 (or 252327 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 528042921448 in words is "five hundred twenty-eight billion, forty-two million, nine hundred twenty-one thousand, four hundred forty-eight".