84081913136719 has 8 divisors (see below), whose sum is σ = 88638011529840. Its totient is φ = 79538888198016.

The previous prime is 84081913136657. The next prime is 84081913136761. The reversal of 84081913136719 is 91763131918048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84081913136719 - 2²⁵ = 84081879582287 is a prime.

It is a super-2 number, since 2×84081913136719² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84081913136789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3268350394 + ... + 3268376119.

It is an arithmetic number, because the mean of its divisors is an integer number (11079751441230).

Almost surely, 2^{84081913136719} is an apocalyptic number.

84081913136719 is a deficient number, since it is larger than the sum of its proper divisors (4556098393121).

84081913136719 is a wasteful number, since it uses less digits than its factorization.

84081913136719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536727209.

The product of its (nonzero) digits is 7838208, while the sum is 61.

The spelling of 84081913136719 in words is "eighty-four trillion, eighty-one billion, nine hundred thirteen million, one hundred thirty-six thousand, seven hundred nineteen".