99987084075 has 48 divisors (see below), whose sum is σ = 176511202560. Its totient is φ = 49821636480.

The previous prime is 99987084037. The next prime is 99987084083. The reversal of 99987084075 is 57048078999.

It is not a de Polignac number, because 99987084075 - 2¹⁸ = 99986821931 is a prime.

It is a super-2 number, since 2×99987084075² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 99987083997 and 99987084015.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 599820 + ... + 748169.

It is an arithmetic number, because the mean of its divisors is an integer number (3677316720).

Almost surely, 2^99987084075 is an apocalyptic number.

99987084075 is a deficient number, since it is larger than the sum of its proper divisors (76524118485).

99987084075 is a wasteful number, since it uses less digits than its factorization.

99987084075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348068 (or 1348063 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 66.

The spelling of 99987084075 in words is "ninety-nine billion, nine hundred eighty-seven million, eighty-four thousand, seventy-five".