86211740515 has 4 divisors (see below), whose sum is σ = 103454088624. Its totient is φ = 68969392408.

The previous prime is 86211740509. The next prime is 86211740533. The reversal of 86211740515 is 51504711268.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86211740515 - 2¹⁷ = 86211609443 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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 in 3 ways as a sum of consecutive naturals, for example, 8621174047 + ... + 8621174056.

It is an arithmetic number, because the mean of its divisors is an integer number (25863522156).

Almost surely, 2^86211740515 is an apocalyptic number.

86211740515 is a deficient number, since it is larger than the sum of its proper divisors (17242348109).

86211740515 is a wasteful number, since it uses less digits than its factorization.

86211740515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17242348108.

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 86211740515 in words is "eighty-six billion, two hundred eleven million, seven hundred forty thousand, five hundred fifteen".