896787994464 has 144 divisors (see below), whose sum is σ = 2663649896544. Its totient is φ = 285660672000.

The previous prime is 896787994397. The next prime is 896787994481. The reversal of 896787994464 is 464499787698.

896787994464 is a `hidden beast` number, since 8 + 9 + 6 + 7 + 87 + 99 + 446 + 4 = 666.

896787994464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6964264 + ... + 7091864.

It is an arithmetic number, because the mean of its divisors is an integer number (18497568726).

Almost surely, 2^896787994464 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 896787994464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331824948272).

896787994464 is an abundant number, since it is smaller than the sum of its proper divisors (1766861902080).

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

896787994464 is a wasteful number, since it uses less digits than its factorization.

896787994464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128701 (or 128690 counting only the distinct ones).

The product of its digits is 5267275776, while the sum is 81.

The spelling of 896787994464 in words is "eight hundred ninety-six billion, seven hundred eighty-seven million, nine hundred ninety-four thousand, four hundred sixty-four".