99191679259 has 8 divisors (see below), whose sum is σ = 103625044992. Its totient is φ = 94835415720.

The previous prime is 99191679211. The next prime is 99191679287. The reversal of 99191679259 is 95297619199.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99191679259 - 2¹⁷ = 99191548187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99191679194 and 99191679203.

It is not an unprimeable number, because it can be changed into a prime (99191679299) 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 7 ways as a sum of consecutive naturals, for example, 19272919 + ... + 19278064.

It is an arithmetic number, because the mean of its divisors is an integer number (12953130624).

Almost surely, 2^99191679259 is an apocalyptic number.

99191679259 is a deficient number, since it is larger than the sum of its proper divisors (4433365733).

99191679259 is a wasteful number, since it uses less digits than its factorization.

99191679259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38551097.

The product of its digits is 24800580, while the sum is 67.

The spelling of 99191679259 in words is "ninety-nine billion, one hundred ninety-one million, six hundred seventy-nine thousand, two hundred fifty-nine".