86988251439 has 24 divisors (see below), whose sum is σ = 135551072592. Its totient is φ = 53551031040.

The previous prime is 86988251407. The next prime is 86988251443. The reversal of 86988251439 is 93415288968.

86988251439 is a `hidden beast` number, since 8 + 6 + 9 + 8 + 82 + 514 + 39 = 666.

It is not a de Polignac number, because 86988251439 - 2⁵ = 86988251407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86988255439) 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, 5355577 + ... + 5371794.

It is an arithmetic number, because the mean of its divisors is an integer number (5647961358).

Almost surely, 2^86988251439 is an apocalyptic number.

86988251439 is a deficient number, since it is larger than the sum of its proper divisors (48562821153).

86988251439 is a wasteful number, since it uses less digits than its factorization.

86988251439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10727447 (or 10727444 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 63.

The spelling of 86988251439 in words is "eighty-six billion, nine hundred eighty-eight million, two hundred fifty-one thousand, four hundred thirty-nine".