84161272042 has 8 divisors (see below), whose sum is σ = 128381601600. Its totient is φ = 41367404844.

The previous prime is 84161272009. The next prime is 84161272049. The reversal of 84161272042 is 24027216148.

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

It is a junction number, because it is equal to n+sod(n) for n = 84161271992 and 84161272010.

It is not an unprimeable number, because it can be changed into a prime (84161272049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356615442 + ... + 356615677.

It is an arithmetic number, because the mean of its divisors is an integer number (16047700200).

Almost surely, 2^84161272042 is an apocalyptic number.

84161272042 is a deficient number, since it is larger than the sum of its proper divisors (44220329558).

84161272042 is a wasteful number, since it uses less digits than its factorization.

84161272042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713231180.

The product of its (nonzero) digits is 43008, while the sum is 37.

The spelling of 84161272042 in words is "eighty-four billion, one hundred sixty-one million, two hundred seventy-two thousand, forty-two".