9972518458 has 16 divisors (see below), whose sum is σ = 17099634240. Its totient is φ = 4272964416.

The previous prime is 9972518389. The next prime is 9972518459. The reversal of 9972518458 is 8548152799.

It is a super-2 number, since 2×9972518458² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9972518459) 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, 15423 + ... + 142066.

It is an arithmetic number, because the mean of its divisors is an integer number (1068727140).

Almost surely, 2^9972518458 is an apocalyptic number.

9972518458 is a deficient number, since it is larger than the sum of its proper divisors (7127115782).

9972518458 is a wasteful number, since it uses less digits than its factorization.

9972518458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162021.

The product of its digits is 7257600, while the sum is 58.

The square root of 9972518458 is about 99862.4977556640. The cubic root of 9972518458 is about 2152.4593064584.

The spelling of 9972518458 in words is "nine billion, nine hundred seventy-two million, five hundred eighteen thousand, four hundred fifty-eight".