1896044145265 has 16 divisors (see below), whose sum is σ = 2417427372240. Its totient is φ = 1427609690880.

The previous prime is 1896044145251. The next prime is 1896044145341. The reversal of 1896044145265 is 5625414406981.

It can be written as a sum of positive squares in 8 ways, for example, as 11747091456 + 1884297053809 = 108384^2 + 1372697^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1896044145265 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38567826 + ... + 38616955.

It is an arithmetic number, because the mean of its divisors is an integer number (151089210765).

Almost surely, 2^{1896044145265} is an apocalyptic number.

It is an amenable number.

1896044145265 is a deficient number, since it is larger than the sum of its proper divisors (521383226975).

1896044145265 is an frugal number, since it uses more digits than its factorization.

1896044145265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77184837 (or 77184803 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 55.

The spelling of 1896044145265 in words is "one trillion, eight hundred ninety-six billion, forty-four million, one hundred forty-five thousand, two hundred sixty-five".