9999902102 has 8 divisors (see below), whose sum is σ = 15024324576. Its totient is φ = 4991793912.

The previous prime is 9999902093. The next prime is 9999902131. The reversal of 9999902102 is 2012099999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4077038 + ... + 4079489.

It is an arithmetic number, because the mean of its divisors is an integer number (1878040572).

Almost surely, 2^9999902102 is an apocalyptic number.

9999902102 is a deficient number, since it is larger than the sum of its proper divisors (5024422474).

9999902102 is a wasteful number, since it uses less digits than its factorization.

9999902102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8157142.

The product of its (nonzero) digits is 236196, while the sum is 50.

The square root of 9999902102 is about 99999.5105088020. The cubic root of 9999902102 is about 2154.4276595140.

The spelling of 9999902102 in words is "nine billion, nine hundred ninety-nine million, nine hundred two thousand, one hundred two".