99989105139 has 192 divisors, whose sum is σ = 206135055360. Its totient is φ = 45058498560.

The previous prime is 99989105129. The next prime is 99989105147. The reversal of 99989105139 is 93150198999.

It is not a de Polignac number, because 99989105139 - 2⁸ = 99989104883 is a prime.

It is a super-2 number, since 2×99989105139² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (99989105119) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 8276007 + ... + 8288079.

It is an arithmetic number, because the mean of its divisors is an integer number (1073620080).

Almost surely, 2^99989105139 is an apocalyptic number.

99989105139 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

99989105139 is the 169022-nd nonagonal number.

99989105139 is an abundant number, since it is smaller than the sum of its proper divisors (106145950221).

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

99989105139 is a wasteful number, since it uses less digits than its factorization.

99989105139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12170 (or 12167 counting only the distinct ones).

The product of its (nonzero) digits is 7085880, while the sum is 63.

The spelling of 99989105139 in words is "ninety-nine billion, nine hundred eighty-nine million, one hundred five thousand, one hundred thirty-nine".