1089848778 has 32 divisors (see below), whose sum is σ = 2296472640. Its totient is φ = 343854720.

The previous prime is 1089848761. The next prime is 1089848779. The reversal of 1089848778 is 8778489801.

It is not an unprimeable number, because it can be changed into a prime (1089848779) 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, 146976 + ... + 154212.

It is an arithmetic number, because the mean of its divisors is an integer number (71764770).

Almost surely, 2^1089848778 is an apocalyptic number.

1089848778 is an abundant number, since it is smaller than the sum of its proper divisors (1206623862).

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

1089848778 is a wasteful number, since it uses less digits than its factorization.

1089848778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8582.

The product of its (nonzero) digits is 7225344, while the sum is 60.

The square root of 1089848778 is about 33012.8577678455. The cubic root of 1089848778 is about 1029.0948714095.

The spelling of 1089848778 in words is "one billion, eighty-nine million, eight hundred forty-eight thousand, seven hundred seventy-eight".