1088861805720 has 192 divisors, whose sum is σ = 3976713074880. Its totient is φ = 256374125568.

The previous prime is 1088861805719. The next prime is 1088861805833. The reversal of 1088861805720 is 275081688801.

1088861805720 is a `hidden beast` number, since 1 + 0 + 8 + 8 + 8 + 61 + 8 + 0 + 572 + 0 = 666.

1088861805720 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4950247 + ... + 5165526.

It is an arithmetic number, because the mean of its divisors is an integer number (20712047265).

Almost surely, 2^{1088861805720} is an apocalyptic number.

1088861805720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1088861805720 is an abundant number, since it is smaller than the sum of its proper divisors (2887851269160).

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

1088861805720 is a wasteful number, since it uses less digits than its factorization.

1088861805720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10115826 (or 10115819 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 54.

The spelling of 1088861805720 in words is "one trillion, eighty-eight billion, eight hundred sixty-one million, eight hundred five thousand, seven hundred twenty".