1081328889 has 16 divisors (see below), whose sum is σ = 1456291584. Its totient is φ = 713653200.

The previous prime is 1081328881. The next prime is 1081328891. The reversal of 1081328889 is 9888231801.

It is not a de Polignac number, because 1081328889 - 2³ = 1081328881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1081328881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170994 + ... + 177204.

It is an arithmetic number, because the mean of its divisors is an integer number (91018224).

Almost surely, 2^1081328889 is an apocalyptic number.

It is an amenable number.

1081328889 is a deficient number, since it is larger than the sum of its proper divisors (374962695).

1081328889 is a wasteful number, since it uses less digits than its factorization.

1081328889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6788.

The product of its (nonzero) digits is 221184, while the sum is 48.

The square root of 1081328889 is about 32883.5656369561. The cubic root of 1081328889 is about 1026.4062044594.

The spelling of 1081328889 in words is "one billion, eighty-one million, three hundred twenty-eight thousand, eight hundred eighty-nine".