87686152617 has 16 divisors (see below), whose sum is σ = 133674341760. Its totient is φ = 50084867712.

The previous prime is 87686152607. The next prime is 87686152717. The reversal of 87686152617 is 71625168678.

It is a happy number.

It is not a de Polignac number, because 87686152617 - 2⁶ = 87686152553 is a prime.

It is a super-2 number, since 2×87686152617² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87686152607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 845892 + ... + 943877.

It is an arithmetic number, because the mean of its divisors is an integer number (8354646360).

Almost surely, 2^87686152617 is an apocalyptic number.

It is an amenable number.

87686152617 is a deficient number, since it is larger than the sum of its proper divisors (45988189143).

87686152617 is a wasteful number, since it uses less digits than its factorization.

87686152617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792112.

The product of its digits is 6773760, while the sum is 57.

The spelling of 87686152617 in words is "eighty-seven billion, six hundred eighty-six million, one hundred fifty-two thousand, six hundred seventeen".