9213442564 has 24 divisors (see below), whose sum is σ = 16832554200. Its totient is φ = 4407056640.

The previous prime is 9213442549. The next prime is 9213442577. The reversal of 9213442564 is 4652443129.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2596921600 + 6616520964 = 50960^2 + 81342^2 .

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, 351697 + ... + 376984.

It is an arithmetic number, because the mean of its divisors is an integer number (701356425).

Almost surely, 2^9213442564 is an apocalyptic number.

It is an amenable number.

9213442564 is a deficient number, since it is larger than the sum of its proper divisors (7619111636).

9213442564 is a wasteful number, since it uses less digits than its factorization.

9213442564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728823 (or 728821 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 9213442564 is about 95986.6790966330. The cubic root of 9213442564 is about 2096.3991628656.

The spelling of 9213442564 in words is "nine billion, two hundred thirteen million, four hundred forty-two thousand, five hundred sixty-four".