99819427308 has 24 divisors (see below), whose sum is σ = 235088747712. Its totient is φ = 32962178064.

The previous prime is 99819427307. The next prime is 99819427321. The reversal of 99819427308 is 80372491899.

It is a super-2 number, since 2×99819427308² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99819427307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38869210 + ... + 38871777.

It is an arithmetic number, because the mean of its divisors is an integer number (9795364488).

Almost surely, 2^99819427308 is an apocalyptic number.

It is an amenable number.

99819427308 is an abundant number, since it is smaller than the sum of its proper divisors (135269320404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99819427308 is a wasteful number, since it uses less digits than its factorization.

99819427308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77741101 (or 77741099 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 60.

The spelling of 99819427308 in words is "ninety-nine billion, eight hundred nineteen million, four hundred twenty-seven thousand, three hundred eight".