87688426839 has 48 divisors (see below), whose sum is σ = 127666656000. Its totient is φ = 53510865408.

The previous prime is 87688426829. The next prime is 87688426883. The reversal of 87688426839 is 93862488678.

It is a happy number.

It is not a de Polignac number, because 87688426839 - 2⁸ = 87688426583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87688426829) 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 47 ways as a sum of consecutive naturals, for example, 33999652 + ... + 34002230.

It is an arithmetic number, because the mean of its divisors is an integer number (2659722000).

Almost surely, 2^87688426839 is an apocalyptic number.

87688426839 is a deficient number, since it is larger than the sum of its proper divisors (39978229161).

87688426839 is a wasteful number, since it uses less digits than its factorization.

87688426839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144 (or 3131 counting only the distinct ones).

The product of its digits is 222953472, while the sum is 69.

The spelling of 87688426839 in words is "eighty-seven billion, six hundred eighty-eight million, four hundred twenty-six thousand, eight hundred thirty-nine".