86708422521 has 12 divisors (see below), whose sum is σ = 143137713472. Its totient is φ = 49547669976.

The previous prime is 86708422469. The next prime is 86708422529. The reversal of 86708422521 is 12522480768.

86708422521 is a `hidden beast` number, since 86 + 7 + 0 + 8 + 42 + 2 + 521 = 666.

It is not a de Polignac number, because 86708422521 - 2¹³ = 86708414329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86708422529) 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 11 ways as a sum of consecutive naturals, for example, 688162021 + ... + 688162146.

Almost surely, 2^86708422521 is an apocalyptic number.

It is an amenable number.

86708422521 is a deficient number, since it is larger than the sum of its proper divisors (56429290951).

86708422521 is a wasteful number, since it uses less digits than its factorization.

86708422521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376324180 (or 1376324177 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 86708422521 in words is "eighty-six billion, seven hundred eight million, four hundred twenty-two thousand, five hundred twenty-one".