85868622618451 has 6 divisors (see below), whose sum is σ = 87912007907100. Its totient is φ = 83871677904588.

The previous prime is 85868622618439. The next prime is 85868622618463. The reversal of 85868622618451 is 15481622686858.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85868622618439) and next prime (85868622618463).

It is not a de Polignac number, because 85868622618451 - 2⁵ = 85868622618419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85868622618481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23220285501 + ... + 23220289198.

It is an arithmetic number, because the mean of its divisors is an integer number (14652001317850).

Almost surely, 2^{85868622618451} is an apocalyptic number.

85868622618451 is a deficient number, since it is larger than the sum of its proper divisors (2043385288649).

85868622618451 is an equidigital number, since it uses as much as digits as its factorization.

85868622618451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46440574785 (or 46440574742 counting only the distinct ones).

The product of its digits is 353894400, while the sum is 70.

The spelling of 85868622618451 in words is "eighty-five trillion, eight hundred sixty-eight billion, six hundred twenty-two million, six hundred eighteen thousand, four hundred fifty-one".