84674161881 has 6 divisors (see below), whose sum is σ = 122307122730. Its totient is φ = 56449441248.

The previous prime is 84674161861. The next prime is 84674161973. The reversal of 84674161881 is 18816147648.

84674161881 is a `hidden beast` number, since 8 + 46 + 7 + 416 + 188 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 46293825600 + 38380336281 = 215160^2 + 195909^2 .

It is not a de Polignac number, because 84674161881 - 2¹¹ = 84674159833 is a prime.

It is a super-4 number, since 4×84674161881⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84674161841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4704120096 + ... + 4704120113.

It is an arithmetic number, because the mean of its divisors is an integer number (20384520455).

Almost surely, 2^84674161881 is an apocalyptic number.

It is an amenable number.

84674161881 is a deficient number, since it is larger than the sum of its proper divisors (37632960849).

84674161881 is a wasteful number, since it uses less digits than its factorization.

84674161881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9408240215 (or 9408240212 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 54.

The spelling of 84674161881 in words is "eighty-four billion, six hundred seventy-four million, one hundred sixty-one thousand, eight hundred eighty-one".