899950422236544 has 512 divisors, whose sum is σ = 3157387879219200. Its totient is φ = 246934693324800.

The previous prime is 899950422236543. The next prime is 899950422236581. The reversal of 899950422236544 is 445632224059998.

899950422236544 is a `hidden beast` number, since 8 + 9 + 9 + 9 + 5 + 0 + 42 + 2 + 2 + 36 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899950422236543) 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 63 ways as a sum of consecutive naturals, for example, 93663519 + ... + 102823905.

It is an arithmetic number, because the mean of its divisors is an integer number (6166773201600).

Almost surely, 2^{899950422236544} is an apocalyptic number.

899950422236544 is a gapful number since it is divisible by the number (84) 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 899950422236544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1578693939609600).

899950422236544 is an abundant number, since it is smaller than the sum of its proper divisors (2257437456982656).

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

899950422236544 is a wasteful number, since it uses less digits than its factorization.

899950422236544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9160579 (or 9160561 counting only the distinct ones).

The product of its (nonzero) digits is 1343692800, while the sum is 72.

The spelling of 899950422236544 in words is "eight hundred ninety-nine trillion, nine hundred fifty billion, four hundred twenty-two million, two hundred thirty-six thousand, five hundred forty-four".