99835123378992 has 20 divisors (see below), whose sum is σ = 257907402062520. Its totient is φ = 33278374459648.

The previous prime is 99835123378973. The next prime is 99835123378993. The reversal of 99835123378992 is 29987332153899.

It is not an unprimeable number, because it can be changed into a prime (99835123378993) 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, 1039949201817 + ... + 1039949201912.

It is an arithmetic number, because the mean of its divisors is an integer number (12895370103126).

Almost surely, 2^{99835123378992} is an apocalyptic number.

It is an amenable number.

99835123378992 is an abundant number, since it is smaller than the sum of its proper divisors (158072278683528).

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

99835123378992 is a wasteful number, since it uses less digits than its factorization.

99835123378992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079898403740 (or 2079898403734 counting only the distinct ones).

The product of its digits is 1587237120, while the sum is 78.

The spelling of 99835123378992 in words is "ninety-nine trillion, eight hundred thirty-five billion, one hundred twenty-three million, three hundred seventy-eight thousand, nine hundred ninety-two".