1089117964 has 48 divisors (see below), whose sum is σ = 2127605760. Its totient is φ = 483658560.

The previous prime is 1089117961. The next prime is 1089118003. The reversal of 1089117964 is 4697119801.

It is not an unprimeable number, because it can be changed into a prime (1089117961) 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, 372942 + ... + 375850.

It is an arithmetic number, because the mean of its divisors is an integer number (44325120).

Almost surely, 2^1089117964 is an apocalyptic number.

It is an amenable number.

1089117964 is a deficient number, since it is larger than the sum of its proper divisors (1038487796).

1089117964 is a wasteful number, since it uses less digits than its factorization.

1089117964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118 (or 3116 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 46.

The square root of 1089117964 is about 33001.7872849335. The cubic root of 1089117964 is about 1028.8647951143.

The spelling of 1089117964 in words is "one billion, eighty-nine million, one hundred seventeen thousand, nine hundred sixty-four".