84686454444568 has 32 divisors (see below), whose sum is σ = 169498463328000. Its totient is φ = 39549641433120.

The previous prime is 84686454444541. The next prime is 84686454444593. The reversal of 84686454444568 is 86544445468648.

It is a happy number.

It is a super-2 number, since 2×84686454444568² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (76).

It is a junction number, because it is equal to n+sod(n) for n = 84686454444494 and 84686454444503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3923564748 + ... + 3923586331.

It is an arithmetic number, because the mean of its divisors is an integer number (5296826979000).

Almost surely, 2^{84686454444568} is an apocalyptic number.

It is an amenable number.

84686454444568 is an abundant number, since it is smaller than the sum of its proper divisors (84812008883432).

84686454444568 is a wasteful number, since it uses less digits than its factorization.

84686454444568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7847151175 (or 7847151171 counting only the distinct ones).

The product of its digits is 11324620800, while the sum is 76.

The spelling of 84686454444568 in words is "eighty-four trillion, six hundred eighty-six billion, four hundred fifty-four million, four hundred forty-four thousand, five hundred sixty-eight".