99870357204 has 18 divisors (see below), whose sum is σ = 252450069690. Its totient is φ = 33290119056.

The previous prime is 99870357193. The next prime is 99870357217. The reversal of 99870357204 is 40275307899.

99870357204 is a `hidden beast` number, since 9 + 9 + 87 + 0 + 357 + 204 = 666.

It can be written as a sum of positive squares in only one way, i.e., 95388322500 + 4482034704 = 308850^2 + 66948^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1387088259 + ... + 1387088330.

Almost surely, 2^99870357204 is an apocalyptic number.

It is an amenable number.

99870357204 is an abundant number, since it is smaller than the sum of its proper divisors (152579712486).

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

99870357204 is a wasteful number, since it uses less digits than its factorization.

99870357204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774176599 (or 2774176594 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 99870357204 in words is "ninety-nine billion, eight hundred seventy million, three hundred fifty-seven thousand, two hundred four".