99358444493280 has 480 divisors, whose sum is σ = 403901251117056. Its totient is φ = 22531676138496.

The previous prime is 99358444493267. The next prime is 99358444493333. The reversal of 99358444493280 is 8239444485399.

99358444493280 is a `hidden beast` number, since 9 + 9 + 3 + 58 + 4 + 4 + 4 + 493 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 99358444493199 and 99358444493208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7209547 + ... + 15833333.

Almost surely, 2^{99358444493280} is an apocalyptic number.

99358444493280 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99358444493280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201950625558528).

99358444493280 is an abundant number, since it is smaller than the sum of its proper divisors (304542806623776).

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

99358444493280 is a wasteful number, since it uses less digits than its factorization.

99358444493280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8623948 (or 8623931 counting only the distinct ones).

The product of its (nonzero) digits is 1074954240, while the sum is 72.

The spelling of 99358444493280 in words is "ninety-nine trillion, three hundred fifty-eight billion, four hundred forty-four million, four hundred ninety-three thousand, two hundred eighty".