86556342771 has 32 divisors (see below), whose sum is σ = 131139360000. Its totient is φ = 56408901120.

The previous prime is 86556342767. The next prime is 86556342787. The reversal of 86556342771 is 17724365568.

86556342771 is a `hidden beast` number, since 8 + 6 + 5 + 563 + 4 + 2 + 7 + 71 = 666.

It is not a de Polignac number, because 86556342771 - 2² = 86556342767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86556242771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54355 + ... + 419603.

It is an arithmetic number, because the mean of its divisors is an integer number (4098105000).

Almost surely, 2^86556342771 is an apocalyptic number.

86556342771 is a deficient number, since it is larger than the sum of its proper divisors (44583017229).

86556342771 is a wasteful number, since it uses less digits than its factorization.

86556342771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365456 (or 365450 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 54.

The spelling of 86556342771 in words is "eighty-six billion, five hundred fifty-six million, three hundred forty-two thousand, seven hundred seventy-one".