10889493140 has 24 divisors (see below), whose sum is σ = 24213109032. Its totient is φ = 4099573760.

The previous prime is 10889493133. The next prime is 10889493193. The reversal of 10889493140 is 4139498801.

It can be written as a sum of positive squares in 4 ways, for example, as 4020067216 + 6869425924 = 63404^2 + 82882^2 .

It is a super-2 number, since 2×10889493140² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16013621 + ... + 16014300.

It is an arithmetic number, because the mean of its divisors is an integer number (1008879543).

Almost surely, 2^10889493140 is an apocalyptic number.

10889493140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10889493140 is an abundant number, since it is smaller than the sum of its proper divisors (13323615892).

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

10889493140 is a wasteful number, since it uses less digits than its factorization.

10889493140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32027947 (or 32027945 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 10889493140 in words is "ten billion, eight hundred eighty-nine million, four hundred ninety-three thousand, one hundred forty".