1081768880 has 40 divisors (see below), whose sum is σ = 2545430832. Its totient is φ = 427491584.

The previous prime is 1081768861. The next prime is 1081768903. The reversal of 1081768880 is 888671801.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74819 + ... + 88098.

Almost surely, 2^1081768880 is an apocalyptic number.

1081768880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1081768880 is an abundant number, since it is smaller than the sum of its proper divisors (1463661952).

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

1081768880 is a wasteful number, since it uses less digits than its factorization.

1081768880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163013 (or 163007 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 47.

The square root of 1081768880 is about 32890.2550917441. The cubic root of 1081768880 is about 1026.5453999308.

It can be divided in two parts, 10817 and 68880, that added together give a palindrome (79697).

The spelling of 1081768880 in words is "one billion, eighty-one million, seven hundred sixty-eight thousand, eight hundred eighty".