84781133584 has 45 divisors (see below), whose sum is σ = 191100344967. Its totient is φ = 36331277472.

The previous prime is 84781133573. The next prime is 84781133617. The reversal of 84781133584 is 48533118748.

The square root of 84781133584 is 291172.

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

It is a super-2 number, since 2×84781133584² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8147617 + ... + 8158015.

Almost surely, 2^84781133584 is an apocalyptic number.

84781133584 is the 291172-nd square number.

It is an amenable number.

84781133584 is an abundant number, since it is smaller than the sum of its proper divisors (106319211383).

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

84781133584 is an frugal number, since it uses more digits than its factorization.

84781133584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20820 (or 10408 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 52.

The spelling of 84781133584 in words is "eighty-four billion, seven hundred eighty-one million, one hundred thirty-three thousand, five hundred eighty-four".