99899789926 has 4 divisors (see below), whose sum is σ = 149849684892. Its totient is φ = 49949894962.

The previous prime is 99899789903. The next prime is 99899789933. The reversal of 99899789926 is 62998799899.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24974947480 + ... + 24974947483.

It is an arithmetic number, because the mean of its divisors is an integer number (37462421223).

Almost surely, 2^99899789926 is an apocalyptic number.

99899789926 is a deficient number, since it is larger than the sum of its proper divisors (49949894966).

99899789926 is a wasteful number, since it uses less digits than its factorization.

99899789926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49949894965.

The product of its digits is 2857026816, while the sum is 85.

The spelling of 99899789926 in words is "ninety-nine billion, eight hundred ninety-nine million, seven hundred eighty-nine thousand, nine hundred twenty-six".