84147945688 has 16 divisors (see below), whose sum is σ = 158133561480. Its totient is φ = 41978995968.

The previous prime is 84147945683. The next prime is 84147945689. The reversal of 84147945688 is 88654974148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84147945683) 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, 11868345 + ... + 11875432.

Almost surely, 2^84147945688 is an apocalyptic number.

It is an amenable number.

84147945688 is a deficient number, since it is larger than the sum of its proper divisors (73985615792).

84147945688 is a wasteful number, since it uses less digits than its factorization.

84147945688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23744226 (or 23744222 counting only the distinct ones).

The product of its digits is 61931520, while the sum is 64.

The spelling of 84147945688 in words is "eighty-four billion, one hundred forty-seven million, nine hundred forty-five thousand, six hundred eighty-eight".