99926047872 has 448 divisors, whose sum is σ = 361214640000. Its totient is φ = 26867884032.

The previous prime is 99926047831. The next prime is 99926047873. The reversal of 99926047872 is 27874062999.

99926047872 is a `hidden beast` number, since 9 + 9 + 92 + 6 + 0 + 478 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

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 (99926047873) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 11099629 + ... + 11108627.

Almost surely, 2^99926047872 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 99926047872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180607320000).

99926047872 is an abundant number, since it is smaller than the sum of its proper divisors (261288592128).

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

99926047872 is an equidigital number, since it uses as much as digits as its factorization.

99926047872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9055 (or 9028 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 99926047872 in words is "ninety-nine billion, nine hundred twenty-six million, forty-seven thousand, eight hundred seventy-two".