84641742231 has 4 divisors (see below), whose sum is σ = 112855656312. Its totient is φ = 56427828152.

The previous prime is 84641742209. The next prime is 84641742239. The reversal of 84641742231 is 13224714648.

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 84641742231 - 2²⁷ = 84507524503 is a prime.

It is a super-2 number, since 2×84641742231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84641742239) 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, 14106957036 + ... + 14106957041.

It is an arithmetic number, because the mean of its divisors is an integer number (28213914078).

Almost surely, 2^84641742231 is an apocalyptic number.

84641742231 is a deficient number, since it is larger than the sum of its proper divisors (28213914081).

84641742231 is a wasteful number, since it uses less digits than its factorization.

84641742231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28213914080.

The product of its digits is 258048, while the sum is 42.

The spelling of 84641742231 in words is "eighty-four billion, six hundred forty-one million, seven hundred forty-two thousand, two hundred thirty-one".