99000900098 has 4 divisors (see below), whose sum is σ = 148501350150. Its totient is φ = 49500450048.

The previous prime is 99000900073. The next prime is 99000900121. The reversal of 99000900098 is 89000900099.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89000900099 = 4231 ⋅21035429.

It can be written as a sum of positive squares in only one way, i.e., 50792989129 + 48207910969 = 225373^2 + 219563^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24750225023 + ... + 24750225026.

Almost surely, 2^99000900098 is an apocalyptic number.

99000900098 is a deficient number, since it is larger than the sum of its proper divisors (49500450052).

99000900098 is a wasteful number, since it uses less digits than its factorization.

99000900098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49500450051.

The product of its (nonzero) digits is 52488, while the sum is 44.

Subtracting from 99000900098 its reverse (89000900099), we obtain a palindrome (9999999999).

The spelling of 99000900098 in words is "ninety-nine billion, nine hundred thousand, ninety-eight".