86827026877 has 4 divisors (see below), whose sum is σ = 86911081180. Its totient is φ = 86742972576.

The previous prime is 86827026859. The next prime is 86827026901. The reversal of 86827026877 is 77862072868.

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

It can be written as a sum of positive squares in 2 ways, for example, as 73598806681 + 13228220196 = 271291^2 + 115014^2 .

It is a cyclic number.

It is not a de Polignac number, because 86827026877 - 2⁷ = 86827026749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86827026827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42025602 + ... + 42027667.

It is an arithmetic number, because the mean of its divisors is an integer number (21727770295).

Almost surely, 2^86827026877 is an apocalyptic number.

It is an amenable number.

86827026877 is a deficient number, since it is larger than the sum of its proper divisors (84054303).

86827026877 is a wasteful number, since it uses less digits than its factorization.

86827026877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84054302.

The product of its (nonzero) digits is 25288704, while the sum is 61.

The spelling of 86827026877 in words is "eighty-six billion, eight hundred twenty-seven million, twenty-six thousand, eight hundred seventy-seven".