84419673855 has 96 divisors (see below), whose sum is σ = 152783547840. Its totient is φ = 39756288000.

The previous prime is 84419673817. The next prime is 84419673971. The reversal of 84419673855 is 55837691448.

It is a happy number.

It is not a de Polignac number, because 84419673855 - 2⁶ = 84419673791 is a prime.

It is a super-2 number, since 2×84419673855² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9711351 + ... + 9720039.

It is an arithmetic number, because the mean of its divisors is an integer number (1591495290).

Almost surely, 2^84419673855 is an apocalyptic number.

84419673855 is a deficient number, since it is larger than the sum of its proper divisors (68363873985).

84419673855 is a wasteful number, since it uses less digits than its factorization.

84419673855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8873 (or 8862 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 60.

The spelling of 84419673855 in words is "eighty-four billion, four hundred nineteen million, six hundred seventy-three thousand, eight hundred fifty-five".