84301420506821 has 16 divisors (see below), whose sum is σ = 96391672188288. Its totient is φ = 72222968563200.

The previous prime is 84301420506811. The next prime is 84301420506899. The reversal of 84301420506821 is 12860502410348.

It is a de Polignac number, because none of the positive numbers 2^k-84301420506821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84301420506811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 980080706 + ... + 980166716.

It is an arithmetic number, because the mean of its divisors is an integer number (6024479511768).

Almost surely, 2^{84301420506821} is an apocalyptic number.

It is an amenable number.

84301420506821 is a deficient number, since it is larger than the sum of its proper divisors (12090251681467).

84301420506821 is a wasteful number, since it uses less digits than its factorization.

84301420506821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152972.

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 84301420506821 in words is "eighty-four trillion, three hundred one billion, four hundred twenty million, five hundred six thousand, eight hundred twenty-one".