84180485427 has 8 divisors (see below), whose sum is σ = 112377362640. Its totient is φ = 56051965920.

The previous prime is 84180485419. The next prime is 84180485447. The reversal of 84180485427 is 72458408148.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84180485427 - 2³ = 84180485419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84180485427.

It is not an unprimeable number, because it can be changed into a prime (84180485407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17086552 + ... + 17091477.

It is an arithmetic number, because the mean of its divisors is an integer number (14047170330).

Almost surely, 2^84180485427 is an apocalyptic number.

84180485427 is a deficient number, since it is larger than the sum of its proper divisors (28196877213).

84180485427 is a wasteful number, since it uses less digits than its factorization.

84180485427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34178853.

The product of its (nonzero) digits is 2293760, while the sum is 51.

The spelling of 84180485427 in words is "eighty-four billion, one hundred eighty million, four hundred eighty-five thousand, four hundred twenty-seven".