86642178404752 has 20 divisors (see below), whose sum is σ = 167869752560896. Its totient is φ = 43320951937440.

The previous prime is 86642178404731. The next prime is 86642178404791. The reversal of 86642178404752 is 25740487124668.

It is a super-4 number, since 4×86642178404752⁴ (a number of 57 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3272148 + ... + 13564339.

Almost surely, 2^{86642178404752} is an apocalyptic number.

It is an amenable number.

86642178404752 is a deficient number, since it is larger than the sum of its proper divisors (81227574156144).

86642178404752 is a wasteful number, since it uses less digits than its factorization.

86642178404752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17158126 (or 17158120 counting only the distinct ones).

The product of its (nonzero) digits is 144506880, while the sum is 64.

The spelling of 86642178404752 in words is "eighty-six trillion, six hundred forty-two billion, one hundred seventy-eight million, four hundred four thousand, seven hundred fifty-two".