84211930673 has 4 divisors (see below), whose sum is σ = 90689771508. Its totient is φ = 77734089840.

The previous prime is 84211930661. The next prime is 84211930687. The reversal of 84211930673 is 37603911248.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53062504609 + 31149426064 = 230353^2 + 176492^2 .

It is a cyclic number.

It is not a de Polignac number, because 84211930673 - 2¹² = 84211926577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84211930573) 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, 3238920398 + ... + 3238920423.

It is an arithmetic number, because the mean of its divisors is an integer number (22672442877).

Almost surely, 2^84211930673 is an apocalyptic number.

It is an amenable number.

84211930673 is a deficient number, since it is larger than the sum of its proper divisors (6477840835).

84211930673 is a wasteful number, since it uses less digits than its factorization.

84211930673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6477840834.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 84211930673 in words is "eighty-four billion, two hundred eleven million, nine hundred thirty thousand, six hundred seventy-three".