84356538164 has 6 divisors (see below), whose sum is σ = 147623941794. Its totient is φ = 42178269080.

The previous prime is 84356538137. The next prime is 84356538191. The reversal of 84356538164 is 46183565348.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (84356538137) and next prime (84356538191).

It can be written as a sum of positive squares in only one way, i.e., 51646198564 + 32710339600 = 227258^2 + 180860^2 .

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 as a sum of consecutive naturals, namely, 10544567267 + ... + 10544567274.

It is an arithmetic number, because the mean of its divisors is an integer number (24603990299).

Almost surely, 2^84356538164 is an apocalyptic number.

It is an amenable number.

84356538164 is a deficient number, since it is larger than the sum of its proper divisors (63267403630).

84356538164 is a wasteful number, since it uses less digits than its factorization.

84356538164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21089134545 (or 21089134543 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 53.

The spelling of 84356538164 in words is "eighty-four billion, three hundred fifty-six million, five hundred thirty-eight thousand, one hundred sixty-four".