9314991664 has 80 divisors (see below), whose sum is σ = 20167994880. Its totient is φ = 4131521280.

The previous prime is 9314991619. The next prime is 9314991689. The reversal of 9314991664 is 4661994139.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3083947 + ... + 3086965.

It is an arithmetic number, because the mean of its divisors is an integer number (252099936).

Almost surely, 2^9314991664 is an apocalyptic number.

9314991664 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9314991664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10083997440).

9314991664 is an abundant number, since it is smaller than the sum of its proper divisors (10853003216).

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

9314991664 is a wasteful number, since it uses less digits than its factorization.

9314991664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458 (or 3452 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 52.

The square root of 9314991664 is about 96514.2044675290. The cubic root of 9314991664 is about 2104.0730974040.

The spelling of 9314991664 in words is "nine billion, three hundred fourteen million, nine hundred ninety-one thousand, six hundred sixty-four".