86575385547 has 24 divisors (see below), whose sum is σ = 149200213200. Its totient is φ = 49471648128.

The previous prime is 86575385497. The next prime is 86575385557. The reversal of 86575385547 is 74558357568.

86575385547 is a `hidden beast` number, since 8 + 6 + 5 + 7 + 5 + 3 + 85 + 547 = 666.

It is not a de Polignac number, because 86575385547 - 2⁶ = 86575385483 is a prime.

It is a super-2 number, since 2×86575385547² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (86575385557) 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 23 ways as a sum of consecutive naturals, for example, 32718022 + ... + 32720667.

It is an arithmetic number, because the mean of its divisors is an integer number (6216675550).

Almost surely, 2^86575385547 is an apocalyptic number.

86575385547 is a deficient number, since it is larger than the sum of its proper divisors (62624827653).

86575385547 is a wasteful number, since it uses less digits than its factorization.

86575385547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65438712 (or 65438699 counting only the distinct ones).

The product of its digits is 141120000, while the sum is 63.

The spelling of 86575385547 in words is "eighty-six billion, five hundred seventy-five million, three hundred eighty-five thousand, five hundred forty-seven".