9902889750136 has 64 divisors (see below), whose sum is σ = 19241641440000. Its totient is φ = 4773059758080.

The previous prime is 9902889750121. The next prime is 9902889750139. The reversal of 9902889750136 is 6310579882099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9902889750139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84502750 + ... + 84619858.

It is an arithmetic number, because the mean of its divisors is an integer number (300650647500).

Almost surely, 2^{9902889750136} is an apocalyptic number.

It is an amenable number.

9902889750136 is a deficient number, since it is larger than the sum of its proper divisors (9338751689864).

9902889750136 is a wasteful number, since it uses less digits than its factorization.

9902889750136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118472 (or 118468 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 67.

The spelling of 9902889750136 in words is "nine trillion, nine hundred two billion, eight hundred eighty-nine million, seven hundred fifty thousand, one hundred thirty-six".