9513216464 has 20 divisors (see below), whose sum is σ = 18433631556. Its totient is φ = 4756150272.

The previous prime is 9513216437. The next prime is 9513216469. The reversal of 9513216464 is 4646123159.

It can be written as a sum of positive squares in 2 ways, for example, as 6972250000 + 2540966464 = 83500^2 + 50408^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9513216469) by changing a digit.

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, 196322 + ... + 239934.

Almost surely, 2^9513216464 is an apocalyptic number.

It is an amenable number.

9513216464 is a deficient number, since it is larger than the sum of its proper divisors (8920415092).

9513216464 is a wasteful number, since it uses less digits than its factorization.

9513216464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57254 (or 57248 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 9513216464 is about 97535.7189136370. The cubic root of 9513216464 is about 2118.8934880718.

The spelling of 9513216464 in words is "nine billion, five hundred thirteen million, two hundred sixteen thousand, four hundred sixty-four".