899043600049920 has 2592 divisors, whose sum is σ = 3549839996731392. Its totient is φ = 217736137801728.

The previous prime is 899043600049897. The next prime is 899043600049943. The reversal of 899043600049920 is 29940006340998.

It is a happy number.

899043600049920 is a `hidden beast` number, since 8 + 9 + 90 + 4 + 36 + 0 + 0 + 0 + 499 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (899043600049897) and next prime (899043600049943).

It is a tau number, because it is divible by the number of its divisors (2592).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 914591657749 + ... + 914591658731.

It is an arithmetic number, because the mean of its divisors is an integer number (1369537035776).

Almost surely, 2^{899043600049920} is an apocalyptic number.

899043600049920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899043600049920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1774919998365696).

899043600049920 is an abundant number, since it is smaller than the sum of its proper divisors (2650796396681472).

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

899043600049920 is a wasteful number, since it uses less digits than its factorization.

899043600049920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 30233088, while the sum is 63.

The spelling of 899043600049920 in words is "eight hundred ninety-nine trillion, forty-three billion, six hundred million, forty-nine thousand, nine hundred twenty".