10491685968 has 80 divisors (see below), whose sum is σ = 27488419200. Its totient is φ = 3447797760.

The previous prime is 10491685951. The next prime is 10491685993. The reversal of 10491685968 is 86958619401.

It is a super-2 number, since 2×10491685968² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1530228 + ... + 1537068.

It is an arithmetic number, because the mean of its divisors is an integer number (343605240).

Almost surely, 2^10491685968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10491685968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13744209600).

10491685968 is an abundant number, since it is smaller than the sum of its proper divisors (16996733232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10491685968 is a wasteful number, since it uses less digits than its factorization.

10491685968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7300 (or 7294 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 57.

The spelling of 10491685968 in words is "ten billion, four hundred ninety-one million, six hundred eighty-five thousand, nine hundred sixty-eight".