84550623319 has 4 divisors (see below), whose sum is σ = 84592337544. Its totient is φ = 84508909096.

The previous prime is 84550623263. The next prime is 84550623337. The reversal of 84550623319 is 91332605548.

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 84550623319 - 2⁷ = 84550623191 is a prime.

It is a super-2 number, since 2×84550623319² (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 (84550623359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20854072 + ... + 20858125.

It is an arithmetic number, because the mean of its divisors is an integer number (21148084386).

Almost surely, 2^84550623319 is an apocalyptic number.

84550623319 is a deficient number, since it is larger than the sum of its proper divisors (41714225).

84550623319 is a wasteful number, since it uses less digits than its factorization.

84550623319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41714224.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 84550623319 in words is "eighty-four billion, five hundred fifty million, six hundred twenty-three thousand, three hundred nineteen".