1089889854 has 16 divisors (see below), whose sum is σ = 2209640592. Its totient is φ = 358319808.

The previous prime is 1089889819. The next prime is 1089889877. The reversal of 1089889854 is 4589889801.

1089889854 is digitally balanced in base 4, because in such base 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 7 ways as a sum of consecutive naturals, for example, 1243729 + ... + 1244604.

It is an arithmetic number, because the mean of its divisors is an integer number (138102537).

Almost surely, 2^1089889854 is an apocalyptic number.

1089889854 is an abundant number, since it is smaller than the sum of its proper divisors (1119750738).

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

1089889854 is a wasteful number, since it uses less digits than its factorization.

1089889854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488411.

The product of its (nonzero) digits is 6635520, while the sum is 60.

The square root of 1089889854 is about 33013.4798832235. The cubic root of 1089889854 is about 1029.1077999829.

The spelling of 1089889854 in words is "one billion, eighty-nine million, eight hundred eighty-nine thousand, eight hundred fifty-four".