10686128731 has 8 divisors (see below), whose sum is σ = 10720771200. Its totient is φ = 10651540800.

The previous prime is 10686128729. The next prime is 10686128741. The reversal of 10686128731 is 13782168601.

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 10686128731 - 2¹ = 10686128729 is a prime.

It is a super-2 number, since 2×10686128731² (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 (10686128701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398806 + ... + 424756.

It is an arithmetic number, because the mean of its divisors is an integer number (1340096400).

Almost surely, 2^10686128731 is an apocalyptic number.

10686128731 is a deficient number, since it is larger than the sum of its proper divisors (34642469).

10686128731 is an equidigital number, since it uses as much as digits as its factorization.

10686128731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27269.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 10686128731 in words is "ten billion, six hundred eighty-six million, one hundred twenty-eight thousand, seven hundred thirty-one".