9896991090 has 48 divisors (see below), whose sum is σ = 27630787392. Its totient is φ = 2262169056.

The previous prime is 9896991079. The next prime is 9896991119. The reversal of 9896991090 is 901996989.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3364854 + ... + 3367793.

It is an arithmetic number, because the mean of its divisors is an integer number (575641404).

Almost surely, 2^9896991090 is an apocalyptic number.

9896991090 is an abundant number, since it is smaller than the sum of its proper divisors (17733796302).

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

9896991090 is a wasteful number, since it uses less digits than its factorization.

9896991090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6732671 (or 6732664 counting only the distinct ones).

The product of its (nonzero) digits is 2834352, while the sum is 60.

The square root of 9896991090 is about 99483.6222199413. The cubic root of 9896991090 is about 2147.0116109726.

The spelling of 9896991090 in words is "nine billion, eight hundred ninety-six million, nine hundred ninety-one thousand, ninety".