84353678564 has 24 divisors (see below), whose sum is σ = 156314973528. Its totient is φ = 39692656640.

The previous prime is 84353678419. The next prime is 84353678599. The reversal of 84353678564 is 46587635348.

It can be written as a sum of positive squares in 4 ways, for example, as 46659456064 + 37694222500 = 216008^2 + 194150^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 947552 + ... + 1032744.

It is an arithmetic number, because the mean of its divisors is an integer number (6513123897).

Almost surely, 2^84353678564 is an apocalyptic number.

It is an amenable number.

84353678564 is a deficient number, since it is larger than the sum of its proper divisors (71961294964).

84353678564 is a wasteful number, since it uses less digits than its factorization.

84353678564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99775 (or 99773 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 59.

The spelling of 84353678564 in words is "eighty-four billion, three hundred fifty-three million, six hundred seventy-eight thousand, five hundred sixty-four".