10387840585 has 8 divisors (see below), whose sum is σ = 12466099656. Its totient is φ = 8309811840.

The previous prime is 10387840577. The next prime is 10387840601. The reversal of 10387840585 is 58504878301.

It can be written as a sum of positive squares in 4 ways, for example, as 1892163001 + 8495677584 = 43499^2 + 92172^2 .

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

It is not a de Polignac number, because 10387840585 - 2³ = 10387840577 is a prime.

It is a Duffinian number.

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, 65605 + ... + 158365.

It is an arithmetic number, because the mean of its divisors is an integer number (1558262457).

Almost surely, 2^10387840585 is an apocalyptic number.

It is an amenable number.

10387840585 is a deficient number, since it is larger than the sum of its proper divisors (2078259071).

10387840585 is an equidigital number, since it uses as much as digits as its factorization.

10387840585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115163.

The product of its (nonzero) digits is 1075200, while the sum is 49.

The spelling of 10387840585 in words is "ten billion, three hundred eighty-seven million, eight hundred forty thousand, five hundred eighty-five".