87068439272 has 16 divisors (see below), whose sum is σ = 164936349060. Its totient is φ = 43085412864.

The previous prime is 87068439253. The next prime is 87068439277. The reversal of 87068439272 is 27293486078.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78425762116 + 8642677156 = 280046^2 + 92966^2 .

It is not an unprimeable number, because it can be changed into a prime (87068439277) 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, 56100023 + ... + 56101574.

Almost surely, 2^87068439272 is an apocalyptic number.

It is an amenable number.

87068439272 is a deficient number, since it is larger than the sum of its proper divisors (77867909788).

87068439272 is a wasteful number, since it uses less digits than its factorization.

87068439272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112201700 (or 112201696 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 87068439272 in words is "eighty-seven billion, sixty-eight million, four hundred thirty-nine thousand, two hundred seventy-two".