1028188517632 has 18 divisors (see below), whose sum is σ = 2052360674378. Its totient is φ = 514094258688.

The previous prime is 1028188517623. The next prime is 1028188517663. The reversal of 1028188517632 is 2367158818201.

It can be written as a sum of positive squares in only one way, i.e., 787947376896 + 240241140736 = 887664^2 + 490144^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1028188517632.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2008180443 + ... + 2008180954.

Almost surely, 2^{1028188517632} is an apocalyptic number.

It is an amenable number.

1028188517632 is a deficient number, since it is larger than the sum of its proper divisors (1024172156746).

1028188517632 is an frugal number, since it uses more digits than its factorization.

1028188517632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4016361413 (or 4016361399 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 52.

The spelling of 1028188517632 in words is "one trillion, twenty-eight billion, one hundred eighty-eight million, five hundred seventeen thousand, six hundred thirty-two".