86530170981 has 8 divisors (see below), whose sum is σ = 120389803200. Its totient is φ = 55178659712.

The previous prime is 86530170959. The next prime is 86530170997. The reversal of 86530170981 is 18907103568.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86530170981 - 2⁶ = 86530170917 is a prime.

It is a super-2 number, since 2×86530170981² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86530170981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86530170931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627030156 + ... + 627030293.

It is an arithmetic number, because the mean of its divisors is an integer number (15048725400).

Almost surely, 2^86530170981 is an apocalyptic number.

It is an amenable number.

86530170981 is a deficient number, since it is larger than the sum of its proper divisors (33859632219).

86530170981 is a wasteful number, since it uses less digits than its factorization.

86530170981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254060475.

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 86530170981 in words is "eighty-six billion, five hundred thirty million, one hundred seventy thousand, nine hundred eighty-one".