99348946578 has 192 divisors, whose sum is σ = 267251166720. Its totient is φ = 27255481344.

The previous prime is 99348946573. The next prime is 99348946601. The reversal of 99348946578 is 87564984399.

99348946578 is a `hidden beast` number, since 9 + 9 + 3 + 4 + 8 + 9 + 46 + 578 = 666.

It is not an unprimeable number, because it can be changed into a prime (99348946573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6583650 + ... + 6598722.

It is an arithmetic number, because the mean of its divisors is an integer number (1391933160).

Almost surely, 2^99348946578 is an apocalyptic number.

99348946578 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 99348946578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133625583360).

99348946578 is an abundant number, since it is smaller than the sum of its proper divisors (167902220142).

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

99348946578 is a wasteful number, since it uses less digits than its factorization.

99348946578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15198 (or 15185 counting only the distinct ones).

The product of its digits is 470292480, while the sum is 72.

The spelling of 99348946578 in words is "ninety-nine billion, three hundred forty-eight million, nine hundred forty-six thousand, five hundred seventy-eight".