86510220811 has 16 divisors (see below), whose sum is σ = 101755987200. Its totient is φ = 72016531488.

The previous prime is 86510220809. The next prime is 86510220829. The reversal of 86510220811 is 11802201568.

It is a cyclic number.

It is not a de Polignac number, because 86510220811 - 2¹ = 86510220809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86510220911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1227576 + ... + 1296133.

It is an arithmetic number, because the mean of its divisors is an integer number (6359749200).

Almost surely, 2^86510220811 is an apocalyptic number.

86510220811 is a deficient number, since it is larger than the sum of its proper divisors (15245766389).

86510220811 is a wasteful number, since it uses less digits than its factorization.

86510220811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523858.

The product of its (nonzero) digits is 7680, while the sum is 34.

The spelling of 86510220811 in words is "eighty-six billion, five hundred ten million, two hundred twenty thousand, eight hundred eleven".