9999990104 has 64 divisors (see below), whose sum is σ = 21730796640. Its totient is φ = 4272629760.

The previous prime is 9999990097. The next prime is 9999990107. The reversal of 9999990104 is 4010999999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999990107) 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, 61487 + ... + 154209.

Almost surely, 2^9999990104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9999990104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10865398320).

9999990104 is an abundant number, since it is smaller than the sum of its proper divisors (11730806536).

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

9999990104 is a wasteful number, since it uses less digits than its factorization.

9999990104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92820 (or 92816 counting only the distinct ones).

The product of its (nonzero) digits is 2125764, while the sum is 59.

The square root of 9999990104 is about 99999.9505199878. The cubic root of 9999990104 is about 2154.4339793555.

The spelling of 9999990104 in words is "nine billion, nine hundred ninety-nine million, nine hundred ninety thousand, one hundred four".