84171009874576 has 45 divisors (see below), whose sum is σ = 164940694866633. Its totient is φ = 41611019387520.

The previous prime is 84171009874561. The next prime is 84171009874591. The reversal of 84171009874576 is 67547890017148.

The square root of 84171009874576 is 9174476.

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

It is an interprime number because it is at equal distance from previous prime (84171009874561) and next prime (84171009874591).

It can be written as a sum of positive squares in only one way, i.e., 16162619116176 + 68008390758400 = 4020276^2 + 8246720^2 .

It is a Duffinian number.

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, 3266100571 + ... + 3266126341.

Almost surely, 2^{84171009874576} is an apocalyptic number.

84171009874576 is the 9174476-th square number.

It is an amenable number.

84171009874576 is a deficient number, since it is larger than the sum of its proper divisors (80769684992057).

84171009874576 is an frugal number, since it uses more digits than its factorization.

84171009874576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51728 (or 25862 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 67.

The spelling of 84171009874576 in words is "eighty-four trillion, one hundred seventy-one billion, nine million, eight hundred seventy-four thousand, five hundred seventy-six".