1030787386729 has 3 divisors (see below), whose sum is σ = 1030788402007. Its totient is φ = 1030786371452.

The previous prime is 1030787386709. The next prime is 1030787386747. The reversal of 1030787386729 is 9276837870301.

The square root of 1030787386729 is 1015277.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 11390225625 + 1019397161104 = 106725^2 + 1009652^2 .

It is not a de Polignac number, because 1030787386729 - 2²¹ = 1030785289577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1030787386709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 507639 + ... + 1522915.

Almost surely, 2^{1030787386729} is an apocalyptic number.

1030787386729 is the 1015277-th square number.

1030787386729 is the 507639-th centered octagonal number.

It is an amenable number.

1030787386729 is a deficient number, since it is larger than the sum of its proper divisors (1015278).

1030787386729 is an frugal number, since it uses more digits than its factorization.

1030787386729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030554 (or 1015277 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 61.

The spelling of 1030787386729 in words is "one trillion, thirty billion, seven hundred eighty-seven million, three hundred eighty-six thousand, seven hundred twenty-nine".