99859060872 has 160 divisors (see below), whose sum is σ = 286242125400. Its totient is φ = 32513135616.

The previous prime is 99859060871. The next prime is 99859060879. The reversal of 99859060872 is 27806095899.

It can be written as a sum of positive squares in 4 ways, for example, as 96779476836 + 3079584036 = 311094^2 + 55494^2 .

It is a super-3 number, since 3×99859060872³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (99859060871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7858428 + ... + 7871124.

Almost surely, 2^99859060872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99859060872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143121062700).

99859060872 is an abundant number, since it is smaller than the sum of its proper divisors (186383064528).

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

99859060872 is a wasteful number, since it uses less digits than its factorization.

99859060872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12997 (or 12984 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 99859060872 in words is "ninety-nine billion, eight hundred fifty-nine million, sixty thousand, eight hundred seventy-two".