9899724590365 has 8 divisors (see below), whose sum is σ = 12504915272160. Its totient is φ = 7502949163152.

The previous prime is 9899724590363. The next prime is 9899724590383. The reversal of 9899724590365 is 5630954279989.

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

It is a cyclic number.

It is not a de Polignac number, because 9899724590365 - 2¹ = 9899724590363 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9899724590291 and 9899724590300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9899724590363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52103813539 + ... + 52103813728.

It is an arithmetic number, because the mean of its divisors is an integer number (1563114409020).

Almost surely, 2^{9899724590365} is an apocalyptic number.

9899724590365 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9899724590365 is a deficient number, since it is larger than the sum of its proper divisors (2605190681795).

9899724590365 is a wasteful number, since it uses less digits than its factorization.

9899724590365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104207627291.

The product of its (nonzero) digits is 1322697600, while the sum is 76.

The spelling of 9899724590365 in words is "nine trillion, eight hundred ninety-nine billion, seven hundred twenty-four million, five hundred ninety thousand, three hundred sixty-five".