9899714726 has 16 divisors (see below), whose sum is σ = 16201064448. Its totient is φ = 4499445000.

The previous prime is 9899714719. The next prime is 9899714749. The reversal of 9899714726 is 6274179989.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423131 + ... + 445913.

It is an arithmetic number, because the mean of its divisors is an integer number (1012566528).

Almost surely, 2^9899714726 is an apocalyptic number.

9899714726 is a deficient number, since it is larger than the sum of its proper divisors (6301349722).

9899714726 is a wasteful number, since it uses less digits than its factorization.

9899714726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42547.

The product of its digits is 13716864, while the sum is 62.

The square root of 9899714726 is about 99497.3101445461. The cubic root of 9899714726 is about 2147.2085442870.

The spelling of 9899714726 in words is "nine billion, eight hundred ninety-nine million, seven hundred fourteen thousand, seven hundred twenty-six".