1012705009865 has 8 divisors (see below), whose sum is σ = 1215275934600. Its totient is φ = 810144059392.

The previous prime is 1012705009847. The next prime is 1012705009903. The reversal of 1012705009865 is 5689005072101.

1012705009865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 409808666569 + 602896343296 = 640163^2 + 776464^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012705009865 - 2³⁸ = 737827102921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2268344 + ... + 2677833.

It is an arithmetic number, because the mean of its divisors is an integer number (151909491825).

Almost surely, 2^{1012705009865} is an apocalyptic number.

It is an amenable number.

1012705009865 is a deficient number, since it is larger than the sum of its proper divisors (202570924735).

1012705009865 is an equidigital number, since it uses as much as digits as its factorization.

1012705009865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4987131.

The product of its (nonzero) digits is 151200, while the sum is 44.

The spelling of 1012705009865 in words is "one trillion, twelve billion, seven hundred five million, nine thousand, eight hundred sixty-five".