86239771601 has 4 divisors (see below), whose sum is σ = 89989326912. Its totient is φ = 82490216292.

The previous prime is 86239771549. The next prime is 86239771609. The reversal of 86239771601 is 10617793268.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86239771601 is a prime.

It is a super-2 number, since 2×86239771601² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86239771601.

It is not an unprimeable number, because it can be changed into a prime (86239771609) 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 3 ways as a sum of consecutive naturals, for example, 1874777621 + ... + 1874777666.

It is an arithmetic number, because the mean of its divisors is an integer number (22497331728).

Almost surely, 2^86239771601 is an apocalyptic number.

It is an amenable number.

86239771601 is a deficient number, since it is larger than the sum of its proper divisors (3749555311).

86239771601 is a wasteful number, since it uses less digits than its factorization.

86239771601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749555310.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 86239771601 in words is "eighty-six billion, two hundred thirty-nine million, seven hundred seventy-one thousand, six hundred one".