9995298538 has 4 divisors (see below), whose sum is σ = 14992947810. Its totient is φ = 4997649268.

The previous prime is 9995298503. The next prime is 9995298539. The reversal of 9995298538 is 8358925999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8358925999 = 43789 ⋅190891.

It can be written as a sum of positive squares in only one way, i.e., 7373141689 + 2622156849 = 85867^2 + 51207^2 .

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (9995298539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2498824633 + ... + 2498824636.

Almost surely, 2^9995298538 is an apocalyptic number.

9995298538 is a deficient number, since it is larger than the sum of its proper divisors (4997649272).

9995298538 is a wasteful number, since it uses less digits than its factorization.

9995298538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4997649271.

The product of its digits is 62985600, while the sum is 67.

The square root of 9995298538 is about 99976.4899263822. The cubic root of 9995298538 is about 2154.0970040115.

The spelling of 9995298538 in words is "nine billion, nine hundred ninety-five million, two hundred ninety-eight thousand, five hundred thirty-eight".