86858263186278 has 16 divisors (see below), whose sum is σ = 173979335043696. Its totient is φ = 28908952950240.

The previous prime is 86858263186273. The next prime is 86858263186283. The reversal of 86858263186278 is 87268136285868.

It is an interprime number because it is at equal distance from previous prime (86858263186273) and next prime (86858263186283).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86858263186271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10950357001 + ... + 10950364932.

It is an arithmetic number, because the mean of its divisors is an integer number (10873708440231).

Almost surely, 2^{86858263186278} is an apocalyptic number.

86858263186278 is an abundant number, since it is smaller than the sum of its proper divisors (87121071857418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86858263186278 is a wasteful number, since it uses less digits than its factorization.

86858263186278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21900722599.

The product of its digits is 2972712960, while the sum is 78.

The spelling of 86858263186278 in words is "eighty-six trillion, eight hundred fifty-eight billion, two hundred sixty-three million, one hundred eighty-six thousand, two hundred seventy-eight".