87742639134 has 48 divisors (see below), whose sum is σ = 203008590720. Its totient is φ = 27328069440.

The previous prime is 87742639111. The next prime is 87742639139. The reversal of 87742639134 is 43193624778.

87742639134 is a `hidden beast` number, since 87 + 7 + 426 + 3 + 9 + 134 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87742639139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2694937 + ... + 2727300.

It is an arithmetic number, because the mean of its divisors is an integer number (4229345640).

Almost surely, 2^87742639134 is an apocalyptic number.

87742639134 is an abundant number, since it is smaller than the sum of its proper divisors (115265951586).

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

87742639134 is a wasteful number, since it uses less digits than its factorization.

87742639134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5422305 (or 5422302 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The spelling of 87742639134 in words is "eighty-seven billion, seven hundred forty-two million, six hundred thirty-nine thousand, one hundred thirty-four".