86430169808 has 10 divisors (see below), whose sum is σ = 167458454034. Its totient is φ = 43215084896.

The previous prime is 86430169751. The next prime is 86430169823. The reversal of 86430169808 is 80896103468.

It can be written as a sum of positive squares in only one way, i.e., 48431685184 + 37998484624 = 220072^2 + 194932^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 86430169808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2700942791 + ... + 2700942822.

Almost surely, 2^86430169808 is an apocalyptic number.

It is an amenable number.

86430169808 is a deficient number, since it is larger than the sum of its proper divisors (81028284226).

86430169808 is a wasteful number, since it uses less digits than its factorization.

86430169808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5401885621 (or 5401885615 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 86430169808 in words is "eighty-six billion, four hundred thirty million, one hundred sixty-nine thousand, eight hundred eight".