9724994570 has 16 divisors (see below), whose sum is σ = 17535338568. Its totient is φ = 3883253760.

The previous prime is 9724994557. The next prime is 9724994579. The reversal of 9724994570 is 754994279.

It can be written as a sum of positive squares in 4 ways, for example, as 9586955569 + 138039001 = 97913^2 + 11749^2 .

It is not an unprimeable number, because it can be changed into a prime (9724994579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836951 + ... + 848490.

Almost surely, 2^9724994570 is an apocalyptic number.

9724994570 is a deficient number, since it is larger than the sum of its proper divisors (7810343998).

9724994570 is a wasteful number, since it uses less digits than its factorization.

9724994570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686025.

The product of its (nonzero) digits is 5715360, while the sum is 56.

The square root of 9724994570 is about 98615.3870853834. The cubic root of 9724994570 is about 2134.5014582211.

The spelling of 9724994570 in words is "nine billion, seven hundred twenty-four million, nine hundred ninety-four thousand, five hundred seventy".