10787717385 has 24 divisors (see below), whose sum is σ = 18752315400. Its totient is φ = 5736955392.

The previous prime is 10787717371. The next prime is 10787717389. The reversal of 10787717385 is 58371778701.

It can be written as a sum of positive squares in 4 ways, for example, as 4782552336 + 6005165049 = 69156^2 + 77493^2 .

It is not a de Polignac number, because 10787717385 - 2¹⁰ = 10787716361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10787717389) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 327744 + ... + 359153.

It is an arithmetic number, because the mean of its divisors is an integer number (781346475).

Almost surely, 2^10787717385 is an apocalyptic number.

10787717385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10787717385 is a deficient number, since it is larger than the sum of its proper divisors (7964598015).

10787717385 is a wasteful number, since it uses less digits than its factorization.

10787717385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687257 (or 687254 counting only the distinct ones).

The product of its (nonzero) digits is 2304960, while the sum is 54.

The spelling of 10787717385 in words is "ten billion, seven hundred eighty-seven million, seven hundred seventeen thousand, three hundred eighty-five".