1089878211 has 24 divisors (see below), whose sum is σ = 1679627664. Its totient is φ = 678612480.

The previous prime is 1089878197. The next prime is 1089878219. The reversal of 1089878211 is 1128789801.

It is a happy number.

It is not a de Polignac number, because 1089878211 - 2¹⁵ = 1089845443 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1089878219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7146 + ... + 47231.

It is an arithmetic number, because the mean of its divisors is an integer number (69984486).

Almost surely, 2^1089878211 is an apocalyptic number.

1089878211 is a deficient number, since it is larger than the sum of its proper divisors (589749453).

1089878211 is a wasteful number, since it uses less digits than its factorization.

1089878211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54531 (or 54528 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 45.

The square root of 1089878211 is about 33013.3035456920. The cubic root of 1089878211 is about 1029.1041354093.

The spelling of 1089878211 in words is "one billion, eighty-nine million, eight hundred seventy-eight thousand, two hundred eleven".