86956652173 has 4 divisors (see below), whose sum is σ = 86957243100. Its totient is φ = 86956061248.

The previous prime is 86956652147. The next prime is 86956652177. The reversal of 86956652173 is 37125665968.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 80064663849 + 6891988324 = 282957^2 + 83018^2 .

It is a cyclic number.

It is not a de Polignac number, because 86956652173 - 2¹³ = 86956643981 is a prime.

It is a super-2 number, since 2×86956652173² (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 (86956652177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120003 + ... + 433951.

It is an arithmetic number, because the mean of its divisors is an integer number (21739310775).

Almost surely, 2^86956652173 is an apocalyptic number.

It is an amenable number.

86956652173 is a deficient number, since it is larger than the sum of its proper divisors (590927).

86956652173 is a wasteful number, since it uses less digits than its factorization.

86956652173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590926.

The product of its digits is 16329600, while the sum is 58.

The spelling of 86956652173 in words is "eighty-six billion, nine hundred fifty-six million, six hundred fifty-two thousand, one hundred seventy-three".