84194420267 has 4 divisors (see below), whose sum is σ = 84196263216. Its totient is φ = 84192577320.

The previous prime is 84194420249. The next prime is 84194420291. The reversal of 84194420267 is 76202449148.

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

It is a cyclic number.

It is not a de Polignac number, because 84194420267 - 2³⁴ = 67014551083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84194420237) 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, 851159 + ... + 944912.

It is an arithmetic number, because the mean of its divisors is an integer number (21049065804).

Almost surely, 2^84194420267 is an apocalyptic number.

84194420267 is a deficient number, since it is larger than the sum of its proper divisors (1842949).

84194420267 is a wasteful number, since it uses less digits than its factorization.

84194420267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842948.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 84194420267 in words is "eighty-four billion, one hundred ninety-four million, four hundred twenty thousand, two hundred sixty-seven".