86256343672 has 8 divisors (see below), whose sum is σ = 161730644400. Its totient is φ = 43128171832.

The previous prime is 86256343577. The next prime is 86256343739. The reversal of 86256343672 is 27634365268.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5391021472 + ... + 5391021487.

It is an arithmetic number, because the mean of its divisors is an integer number (20216330550).

Almost surely, 2^86256343672 is an apocalyptic number.

It is an amenable number.

86256343672 is a deficient number, since it is larger than the sum of its proper divisors (75474300728).

86256343672 is a wasteful number, since it uses less digits than its factorization.

86256343672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10782042965 (or 10782042961 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 52.

The spelling of 86256343672 in words is "eighty-six billion, two hundred fifty-six million, three hundred forty-three thousand, six hundred seventy-two".