1089671864 has 16 divisors (see below), whose sum is σ = 2044837320. Its totient is φ = 544381920.

The previous prime is 1089671819. The next prime is 1089671879. The reversal of 1089671864 is 4681769801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46442 + ... + 65849.

Almost surely, 2^1089671864 is an apocalyptic number.

It is an amenable number.

1089671864 is a deficient number, since it is larger than the sum of its proper divisors (955165456).

1089671864 is a wasteful number, since it uses less digits than its factorization.

1089671864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113510 (or 113506 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 1089671864 is about 33010.1781879468. The cubic root of 1089671864 is about 1029.0391844353.

The spelling of 1089671864 in words is "one billion, eighty-nine million, six hundred seventy-one thousand, eight hundred sixty-four".