10908985728 has 64 divisors (see below), whose sum is σ = 29034442800. Its totient is φ = 3629119488.

The previous prime is 10908985727. The next prime is 10908985757. The reversal of 10908985728 is 82758980901.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×10908985728² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10908985727) 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, 167550 + ... + 223362.

Almost surely, 2^10908985728 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 10908985728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14517221400).

10908985728 is an abundant number, since it is smaller than the sum of its proper divisors (18125457072).

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

10908985728 is an equidigital number, since it uses as much as digits as its factorization.

10908985728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56339 (or 56327 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 57.

The spelling of 10908985728 in words is "ten billion, nine hundred eight million, nine hundred eighty-five thousand, seven hundred twenty-eight".