9972518459 has 2 divisors, whose sum is σ = 9972518460. Its totient is φ = 9972518458.

The previous prime is 9972518389. The next prime is 9972518471. The reversal of 9972518459 is 9548152799.

9972518459 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9972518459 - 2²⁸ = 9704083003 is a prime.

It is a super-2 number, since 2×9972518459² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9972518398 and 9972518407.

It is not a weakly prime, because it can be changed into another prime (9972518489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4986259229 + 4986259230.

It is an arithmetic number, because the mean of its divisors is an integer number (4986259230).

Almost surely, 2^9972518459 is an apocalyptic number.

9972518459 is a deficient number, since it is larger than the sum of its proper divisors (1).

9972518459 is an equidigital number, since it uses as much as digits as its factorization.

9972518459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8164800, while the sum is 59.

The square root of 9972518459 is about 99862.4977606709. The cubic root of 9972518459 is about 2152.4593065303.

The spelling of 9972518459 in words is "nine billion, nine hundred seventy-two million, five hundred eighteen thousand, four hundred fifty-nine".