84596667138 has 20 divisors (see below), whose sum is σ = 189559198950. Its totient is φ = 28198888992.

The previous prime is 84596667131. The next prime is 84596667167. The reversal of 84596667138 is 83176669548.

It can be written as a sum of positive squares in only one way, i.e., 50612850729 + 33983816409 = 224973^2 + 184347^2 .

It is a super-2 number, since 2×84596667138² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84596667131) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 261100663 + ... + 261100986.

Almost surely, 2^84596667138 is an apocalyptic number.

84596667138 is an abundant number, since it is smaller than the sum of its proper divisors (104962531812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84596667138 is a wasteful number, since it uses less digits than its factorization.

84596667138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522201663 (or 522201654 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 84596667138 in words is "eighty-four billion, five hundred ninety-six million, six hundred sixty-seven thousand, one hundred thirty-eight".