1784968864 has 72 divisors (see below), whose sum is σ = 4126489920. Its totient is φ = 757766016.

The previous prime is 1784968853. The next prime is 1784968921. The reversal of 1784968864 is 4688694871.

It is a super-2 number, since 2×1784968864² = 6372227690898900992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162457 + ... + 173095.

It is an arithmetic number, because the mean of its divisors is an integer number (57312360).

Almost surely, 2^1784968864 is an apocalyptic number.

1784968864 is a gapful number since it is divisible by the number (14) 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 1784968864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063244960).

1784968864 is an abundant number, since it is smaller than the sum of its proper divisors (2341521056).

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

1784968864 is a wasteful number, since it uses less digits than its factorization.

1784968864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10770 (or 10755 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 61.

The square root of 1784968864 is about 42248.8918671248. The cubic root of 1784968864 is about 1213.0449150097.

The spelling of 1784968864 in words is "one billion, seven hundred eighty-four million, nine hundred sixty-eight thousand, eight hundred sixty-four".