1285087050065 has 24 divisors (see below), whose sum is σ = 1908403161408. Its totient is φ = 813417733440.

The previous prime is 1285087050053. The next prime is 1285087050109. The reversal of 1285087050065 is 5600507805821.

It is a happy number.

It is not a de Polignac number, because 1285087050065 - 2⁸ = 1285087049809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108623591 + ... + 108635420.

It is an arithmetic number, because the mean of its divisors is an integer number (79516798392).

Almost surely, 2^{1285087050065} is an apocalyptic number.

It is an amenable number.

1285087050065 is a deficient number, since it is larger than the sum of its proper divisors (623316111343).

1285087050065 is a wasteful number, since it uses less digits than its factorization.

1285087050065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217259049 (or 217259036 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 47.

The spelling of 1285087050065 in words is "one trillion, two hundred eighty-five billion, eighty-seven million, fifty thousand, sixty-five".