86178840087722 has 8 divisors (see below), whose sum is σ = 130476374712576. Its totient is φ = 42686715183532.

The previous prime is 86178840087721. The next prime is 86178840087757. The reversal of 86178840087722 is 22778004887168.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (86178840087721) 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, 201352429898 + ... + 201352430325.

It is an arithmetic number, because the mean of its divisors is an integer number (16309546839072).

Almost surely, 2^{86178840087722} is an apocalyptic number.

86178840087722 is a deficient number, since it is larger than the sum of its proper divisors (44297534624854).

86178840087722 is a wasteful number, since it uses less digits than its factorization.

86178840087722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402704860332.

The product of its (nonzero) digits is 134873088, while the sum is 68.

The spelling of 86178840087722 in words is "eighty-six trillion, one hundred seventy-eight billion, eight hundred forty million, eighty-seven thousand, seven hundred twenty-two".