1088810858521 has 9 divisors (see below), whose sum is σ = 1149153714261. Its totient is φ = 1031486241564.

The previous prime is 1088810858491. The next prime is 1088810858539. The reversal of 1088810858521 is 1258580188801.

The square root of 1088810858521 is 1043461.

It is a perfect power (a square), and thus also a powerful number.

1088810858521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-1088810858521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1088810858561) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19798300 + ... + 19853218.

It is an arithmetic number, because the mean of its divisors is an integer number (127683746029).

Almost surely, 2^{1088810858521} is an apocalyptic number.

1088810858521 is the 1043461-st square number.

1088810858521 is the 521731-st centered octagonal number.

It is an amenable number.

1088810858521 is a deficient number, since it is larger than the sum of its proper divisors (60342855740).

1088810858521 is an frugal number, since it uses more digits than its factorization.

1088810858521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109876 (or 54938 counting only the distinct ones).

The product of its (nonzero) digits is 1638400, while the sum is 55.

The spelling of 1088810858521 in words is "one trillion, eighty-eight billion, eight hundred ten million, eight hundred fifty-eight thousand, five hundred twenty-one".