10891469568 has 144 divisors (see below), whose sum is σ = 34197395456. Its totient is φ = 3011420160.

The previous prime is 10891469557. The next prime is 10891469573. The reversal of 10891469568 is 86596419801.

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, 133980 + ... + 199332.

Almost surely, 2^10891469568 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 10891469568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17098697728).

10891469568 is an abundant number, since it is smaller than the sum of its proper divisors (23305925888).

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

10891469568 is an equidigital number, since it uses as much as digits as its factorization.

10891469568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65410 (or 65396 counting only the distinct ones).

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

The spelling of 10891469568 in words is "ten billion, eight hundred ninety-one million, four hundred sixty-nine thousand, five hundred sixty-eight".