99893551497792 has 672 divisors, whose sum is σ = 310544487961344. Its totient is φ = 28149153792000.

The previous prime is 99893551497689. The next prime is 99893551497851. The reversal of 99893551497792 is 29779415539899.

It is a junction number, because it is equal to n+sod(n) for n = 99893551497699 and 99893551497708.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11859612493 + ... + 11859620915.

It is an arithmetic number, because the mean of its divisors is an integer number (462119773752).

Almost surely, 2^{99893551497792} 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 99893551497792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155272243980672).

99893551497792 is an abundant number, since it is smaller than the sum of its proper divisors (210650936463552).

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

99893551497792 is a wasteful number, since it uses less digits than its factorization.

99893551497792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8927 (or 8900 counting only the distinct ones).

The product of its digits is 13888324800, while the sum is 87.

The spelling of 99893551497792 in words is "ninety-nine trillion, eight hundred ninety-three billion, five hundred fifty-one million, four hundred ninety-seven thousand, seven hundred ninety-two".