84020842323 has 64 divisors (see below), whose sum is σ = 141900595200. Its totient is φ = 48637147680.

The previous prime is 84020842309. The next prime is 84020842327. The reversal of 84020842323 is 32324802048.

It is a happy number.

84020842323 is a `hidden beast` number, since 8 + 4 + 0 + 208 + 423 + 23 = 666.

It is not a de Polignac number, because 84020842323 - 2⁶ = 84020842259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84020842327) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4902936 + ... + 4920042.

It is an arithmetic number, because the mean of its divisors is an integer number (2217196800).

Almost surely, 2^84020842323 is an apocalyptic number.

84020842323 is a deficient number, since it is larger than the sum of its proper divisors (57879752877).

84020842323 is a wasteful number, since it uses less digits than its factorization.

84020842323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17869 (or 17863 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 84020842323 in words is "eighty-four billion, twenty million, eight hundred forty-two thousand, three hundred twenty-three".