10891064832 has 160 divisors (see below), whose sum is σ = 30203019264. Its totient is φ = 3483648000.

The previous prime is 10891064827. The next prime is 10891064881. The reversal of 10891064832 is 23846019801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6046332 + ... + 6048132.

Almost surely, 2^10891064832 is an apocalyptic number.

10891064832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10891064832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15101509632).

10891064832 is an abundant number, since it is smaller than the sum of its proper divisors (19311954432).

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

10891064832 is a wasteful number, since it uses less digits than its factorization.

10891064832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980 (or 1964 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 10891064832 in words is "ten billion, eight hundred ninety-one million, sixty-four thousand, eight hundred thirty-two".