10685765851 has 8 divisors (see below), whose sum is σ = 11284117520. Its totient is φ = 10091008512.

The previous prime is 10685765821. The next prime is 10685765899. The reversal of 10685765851 is 15856758601.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10685765851 - 2¹⁹ = 10685241563 is a prime.

It is a super-2 number, since 2×10685765851² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10685765821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892470 + ... + 904363.

It is an arithmetic number, because the mean of its divisors is an integer number (1410514690).

Almost surely, 2^10685765851 is an apocalyptic number.

10685765851 is a deficient number, since it is larger than the sum of its proper divisors (598351669).

10685765851 is a wasteful number, since it uses less digits than its factorization.

10685765851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797165.

The product of its (nonzero) digits is 2016000, while the sum is 52.

The spelling of 10685765851 in words is "ten billion, six hundred eighty-five million, seven hundred sixty-five thousand, eight hundred fifty-one".