884901438864 has 135 divisors (see below), whose sum is σ = 2494281295233. Its totient is φ = 292863758976.

The previous prime is 884901438857. The next prime is 884901438943. The reversal of 884901438864 is 468834109488.

The square root of 884901438864 is 940692.

It is a perfect power (a square), and thus also a powerful number.

884901438864 is a `hidden beast` number, since 8 + 8 + 490 + 1 + 4 + 3 + 88 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 152521491600 + 732379947264 = 390540^2 + 855792^2 .

It is a super-2 number, since 2×884901438864² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3126860067 + ... + 3126860349.

Almost surely, 2^884901438864 is an apocalyptic number.

884901438864 is the 940692-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 884901438864

884901438864 is an abundant number, since it is smaller than the sum of its proper divisors (1609379856369).

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

884901438864 is an equidigital number, since it uses as much as digits as its factorization.

884901438864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 42467328, while the sum is 63.

The spelling of 884901438864 in words is "eight hundred eighty-four billion, nine hundred one million, four hundred thirty-eight thousand, eight hundred sixty-four".