10085659785 has 64 divisors (see below), whose sum is σ = 19296264960. Its totient is φ = 4979543040.

The previous prime is 10085659783. The next prime is 10085659789. The reversal of 10085659785 is 58795658001.

10085659785 is a `hidden beast` number, since 1 + 0 + 0 + 8 + 565 + 9 + 78 + 5 = 666.

It is not a de Polignac number, because 10085659785 - 2¹ = 10085659783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10085659783) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 103974 + ... + 176016.

It is an arithmetic number, because the mean of its divisors is an integer number (301504140).

Almost surely, 2^10085659785 is an apocalyptic number.

10085659785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10085659785 is a deficient number, since it is larger than the sum of its proper divisors (9210605175).

10085659785 is a wasteful number, since it uses less digits than its factorization.

10085659785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72135 (or 72129 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 54.

The spelling of 10085659785 in words is "ten billion, eighty-five million, six hundred fifty-nine thousand, seven hundred eighty-five".