899538479424 has 1008 divisors, whose sum is σ = 3144116851200. Its totient is φ = 244552089600.

The previous prime is 899538479407. The next prime is 899538479467. The reversal of 899538479424 is 424974835998.

899538479424 is a `hidden beast` number, since 8 + 9 + 9 + 53 + 84 + 79 + 424 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1662732594 + ... + 1662733134.

Almost surely, 2^899538479424 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 899538479424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572058425600).

899538479424 is an abundant number, since it is smaller than the sum of its proper divisors (2244578371776).

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

899538479424 is a wasteful number, since it uses less digits than its factorization.

899538479424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 638 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 72.

The spelling of 899538479424 in words is "eight hundred ninety-nine billion, five hundred thirty-eight million, four hundred seventy-nine thousand, four hundred twenty-four".