99258959403864 has 192 divisors, whose sum is σ = 289808046528000. Its totient is φ = 30509291520000.

The previous prime is 99258959403853. The next prime is 99258959403911. The reversal of 99258959403864 is 46830495985299.

99258959403864 is a `hidden beast` number, since 9 + 9 + 2 + 5 + 89 + 59 + 403 + 86 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10286963712 + ... + 10286973360.

It is an arithmetic number, because the mean of its divisors is an integer number (1509416909000).

Almost surely, 2^{99258959403864} 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 99258959403864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144904023264000).

99258959403864 is an abundant number, since it is smaller than the sum of its proper divisors (190549087124136).

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

99258959403864 is a wasteful number, since it uses less digits than its factorization.

99258959403864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20026 (or 20019 counting only the distinct ones).

The product of its (nonzero) digits is 6046617600, while the sum is 81.

The spelling of 99258959403864 in words is "ninety-nine trillion, two hundred fifty-eight billion, nine hundred fifty-nine million, four hundred three thousand, eight hundred sixty-four".