1728785333552 has 10 divisors (see below), whose sum is σ = 3349521583788. Its totient is φ = 864392666768.

The previous prime is 1728785333551. The next prime is 1728785333557. The reversal of 1728785333552 is 2553335878271.

It is a junction number, because it is equal to n+sod(n) for n = 1728785333491 and 1728785333500.

It is not an unprimeable number, because it can be changed into a prime (1728785333551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54024541658 + ... + 54024541689.

Almost surely, 2^{1728785333552} is an apocalyptic number.

It is an amenable number.

1728785333552 is a deficient number, since it is larger than the sum of its proper divisors (1620736250236).

1728785333552 is a wasteful number, since it uses less digits than its factorization.

1728785333552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108049083355 (or 108049083349 counting only the distinct ones).

The product of its digits is 42336000, while the sum is 59.

The spelling of 1728785333552 in words is "one trillion, seven hundred twenty-eight billion, seven hundred eighty-five million, three hundred thirty-three thousand, five hundred fifty-two".