84955471319 has 4 divisors (see below), whose sum is σ = 87884970360. Its totient is φ = 82025972280.

The previous prime is 84955471309. The next prime is 84955471331. The reversal of 84955471319 is 91317455948.

It is a happy number.

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 84955471319 - 2²⁰ = 84954422743 is a prime.

It is a super-2 number, since 2×84955471319² (a number of 23 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 (84955471309) 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, 1464749477 + ... + 1464749534.

It is an arithmetic number, because the mean of its divisors is an integer number (21971242590).

Almost surely, 2^84955471319 is an apocalyptic number.

84955471319 is a deficient number, since it is larger than the sum of its proper divisors (2929499041).

84955471319 is a wasteful number, since it uses less digits than its factorization.

84955471319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929499040.

The product of its digits is 5443200, while the sum is 56.

The spelling of 84955471319 in words is "eighty-four billion, nine hundred fifty-five million, four hundred seventy-one thousand, three hundred nineteen".