86215112051 has 4 divisors (see below), whose sum is σ = 88317919704. Its totient is φ = 84112304400.

The previous prime is 86215112047. The next prime is 86215112083. The reversal of 86215112051 is 15021151268.

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 86215112051 - 2² = 86215112047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86215111999 and 86215112017.

It is not an unprimeable number, because it can be changed into a prime (86215162051) by changing a digit.

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, 1051403765 + ... + 1051403846.

It is an arithmetic number, because the mean of its divisors is an integer number (22079479926).

Almost surely, 2^86215112051 is an apocalyptic number.

86215112051 is a deficient number, since it is larger than the sum of its proper divisors (2102807653).

86215112051 is a wasteful number, since it uses less digits than its factorization.

86215112051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102807652.

The product of its (nonzero) digits is 4800, while the sum is 32.

The spelling of 86215112051 in words is "eighty-six billion, two hundred fifteen million, one hundred twelve thousand, fifty-one".