86238388831 has 6 divisors (see below), whose sum is σ = 100318125840. Its totient is φ = 73918618956.

The previous prime is 86238388793. The next prime is 86238388853. The reversal of 86238388831 is 13888383268.

It is not a de Polignac number, because 86238388831 - 2¹¹ = 86238386783 is a prime.

It is a super-2 number, since 2×86238388831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86238388891) 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 5 ways as a sum of consecutive naturals, for example, 879983511 + ... + 879983608.

It is an arithmetic number, because the mean of its divisors is an integer number (16719687640).

Almost surely, 2^86238388831 is an apocalyptic number.

86238388831 is a deficient number, since it is larger than the sum of its proper divisors (14079737009).

86238388831 is a wasteful number, since it uses less digits than its factorization.

86238388831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759967133 (or 1759967126 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 58.

The spelling of 86238388831 in words is "eighty-six billion, two hundred thirty-eight million, three hundred eighty-eight thousand, eight hundred thirty-one".