86312770817 has 8 divisors (see below), whose sum is σ = 106231102656. Its totient is φ = 68291422992.

The previous prime is 86312770759. The next prime is 86312770823. The reversal of 86312770817 is 71807721368.

It is a happy number.

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

It is not a de Polignac number, because 86312770817 - 2¹² = 86312766721 is a prime.

It is a super-2 number, since 2×86312770817² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86312770217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474245903 + ... + 474246084.

It is an arithmetic number, because the mean of its divisors is an integer number (13278887832).

Almost surely, 2^86312770817 is an apocalyptic number.

It is an amenable number.

86312770817 is a deficient number, since it is larger than the sum of its proper divisors (19918331839).

86312770817 is a wasteful number, since it uses less digits than its factorization.

86312770817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948492007.

The product of its (nonzero) digits is 790272, while the sum is 50.

The spelling of 86312770817 in words is "eighty-six billion, three hundred twelve million, seven hundred seventy thousand, eight hundred seventeen".