99390398959 has 4 divisors (see below), whose sum is σ = 99889848400. Its totient is φ = 98890949520.

The previous prime is 99390398941. The next prime is 99390398981. The reversal of 99390398959 is 95989309399.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95989309399 = 1279 ⋅75050281.

It is a cyclic number.

It is not a de Polignac number, because 99390398959 - 2⁵ = 99390398927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99390398891 and 99390398900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99390398999) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 249724422 + ... + 249724819.

It is an arithmetic number, because the mean of its divisors is an integer number (24972462100).

Almost surely, 2^99390398959 is an apocalyptic number.

99390398959 is a deficient number, since it is larger than the sum of its proper divisors (499449441).

99390398959 is a wasteful number, since it uses less digits than its factorization.

99390398959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499449440.

The product of its (nonzero) digits is 191318760, while the sum is 73.

The spelling of 99390398959 in words is "ninety-nine billion, three hundred ninety million, three hundred ninety-eight thousand, nine hundred fifty-nine".