84578598976 has 21 divisors (see below), whose sum is σ = 167840274301. Its totient is φ = 42288136192.

The previous prime is 84578598911. The next prime is 84578599013. The reversal of 84578598976 is 67989587548.

The square root of 84578598976 is 290824.

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

It can be written as a sum of positive squares in only one way, i.e., 24149160000 + 60429438976 = 155400^2 + 245824^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2308416 + ... + 2344768.

Almost surely, 2^84578598976 is an apocalyptic number.

84578598976 is the 290824-th square number.

It is an amenable number.

84578598976 is a deficient number, since it is larger than the sum of its proper divisors (83261675325).

84578598976 is an frugal number, since it uses more digits than its factorization.

84578598976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72718 (or 36355 counting only the distinct ones).

The product of its digits is 1219276800, while the sum is 76.

The spelling of 84578598976 in words is "eighty-four billion, five hundred seventy-eight million, five hundred ninety-eight thousand, nine hundred seventy-six".