99724897284 has 24 divisors (see below), whose sum is σ = 232709924160. Its totient is φ = 33238989984.

The previous prime is 99724897273. The next prime is 99724897309. The reversal of 99724897284 is 48279842799.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169944 + ... + 477839.

It is an arithmetic number, because the mean of its divisors is an integer number (9696246840).

Almost surely, 2^99724897284 is an apocalyptic number.

It is an amenable number.

99724897284 is an abundant number, since it is smaller than the sum of its proper divisors (132985026876).

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

99724897284 is a wasteful number, since it uses less digits than its factorization.

99724897284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660619 (or 660617 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 69.

The spelling of 99724897284 in words is "ninety-nine billion, seven hundred twenty-four million, eight hundred ninety-seven thousand, two hundred eighty-four".