528371386632 has 128 divisors (see below), whose sum is σ = 1532165241600. Its totient is φ = 168394305024.

The previous prime is 528371386607. The next prime is 528371386637. The reversal of 528371386632 is 236683173825.

It is a happy number.

528371386632 is a `hidden beast` number, since 528 + 3 + 7 + 1 + 3 + 86 + 6 + 32 = 666.

It is a super-2 number, since 2×528371386632² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (528371386637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12284268 + ... + 12327204.

It is an arithmetic number, because the mean of its divisors is an integer number (11970040950).

Almost surely, 2^528371386632 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 528371386632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (766082620800).

528371386632 is an abundant number, since it is smaller than the sum of its proper divisors (1003793854968).

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

528371386632 is a wasteful number, since it uses less digits than its factorization.

528371386632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45452 (or 45442 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 528371386632 in words is "five hundred twenty-eight billion, three hundred seventy-one million, three hundred eighty-six thousand, six hundred thirty-two".