99798890153 has 4 divisors (see below), whose sum is σ = 100516867920. Its totient is φ = 99080912388.

The previous prime is 99798890143. The next prime is 99798890171. The reversal of 99798890153 is 35109889799.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99798890153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99798890143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358988675 + ... + 358988952.

It is an arithmetic number, because the mean of its divisors is an integer number (25129216980).

Almost surely, 2^99798890153 is an apocalyptic number.

It is an amenable number.

99798890153 is a deficient number, since it is larger than the sum of its proper divisors (717977767).

99798890153 is a wasteful number, since it uses less digits than its factorization.

99798890153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717977766.

The product of its (nonzero) digits is 44089920, while the sum is 68.

The spelling of 99798890153 in words is "ninety-nine billion, seven hundred ninety-eight million, eight hundred ninety thousand, one hundred fifty-three".