99999900002 has 4 divisors (see below), whose sum is σ = 149999850006. Its totient is φ = 49999950000.

The previous prime is 99999899983. The next prime is 99999900067. The reversal of 99999900002 is 20000999999.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68560709281 + 31439190721 = 261841^2 + 177311^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 24999974999 + ... + 24999975002.

Almost surely, 2^99999900002 is an apocalyptic number.

99999900002 is a deficient number, since it is larger than the sum of its proper divisors (49999950004).

99999900002 is a wasteful number, since it uses less digits than its factorization.

99999900002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49999950003.

The product of its (nonzero) digits is 1062882, while the sum is 56.

It can be divided in two parts, 99999 and 900002, that multiplied together give a palindrome (89999299998).

The spelling of 99999900002 in words is "ninety-nine billion, nine hundred ninety-nine million, nine hundred thousand, two".