78606655086 has 32 divisors (see below), whose sum is σ = 159586334208. Its totient is φ = 25806844800.

The previous prime is 78606655073. The next prime is 78606655103. The reversal of 78606655086 is 68055660687.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3184006 + ... + 3208598.

It is an arithmetic number, because the mean of its divisors is an integer number (4987072944).

Almost surely, 2^78606655086 is an apocalyptic number.

78606655086 is an abundant number, since it is smaller than the sum of its proper divisors (80979679122).

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

78606655086 is a wasteful number, since it uses less digits than its factorization.

78606655086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32616.

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 78606655086 in words is "seventy-eight billion, six hundred six million, six hundred fifty-five thousand, eighty-six".