9975115499 has 2 divisors, whose sum is σ = 9975115500. Its totient is φ = 9975115498.

The previous prime is 9975115477. The next prime is 9975115511. The reversal of 9975115499 is 9945115799.

9975115499 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 9975115499 - 2¹⁶ = 9975049963 is a prime.

It is not a weakly prime, because it can be changed into another prime (9975115429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4987557749 + 4987557750.

It is an arithmetic number, because the mean of its divisors is an integer number (4987557750).

Almost surely, 2^9975115499 is an apocalyptic number.

9975115499 is a deficient number, since it is larger than the sum of its proper divisors (1).

9975115499 is an equidigital number, since it uses as much as digits as its factorization.

9975115499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4592700, while the sum is 59.

The square root of 9975115499 is about 99875.4999937422. The cubic root of 9975115499 is about 2152.6461378963.

The spelling of 9975115499 in words is "nine billion, nine hundred seventy-five million, one hundred fifteen thousand, four hundred ninety-nine".