899729731503024 has 640 divisors, whose sum is σ = 2614174777344000. Its totient is φ = 265436300574720.

The previous prime is 899729731503017. The next prime is 899729731503041. The reversal of 899729731503024 is 420305137927998.

It is a super-2 number, since 2×899729731503024² (a number of 31 digits) contains 22 as substring.

It is a Sastry number since concatenated with its successor gives a square.

It is a self number, because there is not a number n which added to its sum of digits gives 899729731503024.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 76397186224 + ... + 76397198000.

It is an arithmetic number, because the mean of its divisors is an integer number (4084648089600).

Almost surely, 2^{899729731503024} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 899729731503024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1307087388672000).

899729731503024 is an abundant number, since it is smaller than the sum of its proper divisors (1714445045840976).

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

899729731503024 is a wasteful number, since it uses less digits than its factorization.

899729731503024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12441 (or 12435 counting only the distinct ones).

The product of its (nonzero) digits is 205752960, while the sum is 69.

The spelling of 899729731503024 in words is "eight hundred ninety-nine trillion, seven hundred twenty-nine billion, seven hundred thirty-one million, five hundred three thousand, twenty-four".