78530587422618 has 32 divisors (see below), whose sum is σ = 157263782837760. Its totient is φ = 26143105287600.

The previous prime is 78530587422611. The next prime is 78530587422619. The reversal of 78530587422618 is 81622478503587.

It is not an unprimeable number, because it can be changed into a prime (78530587422611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27771753 + ... + 30468531.

It is an arithmetic number, because the mean of its divisors is an integer number (4914493213680).

Almost surely, 2^{78530587422618} is an apocalyptic number.

78530587422618 is an abundant number, since it is smaller than the sum of its proper divisors (78733195415142).

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

78530587422618 is a wasteful number, since it uses less digits than its factorization.

78530587422618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703042.

The product of its (nonzero) digits is 180633600, while the sum is 66.

The spelling of 78530587422618 in words is "seventy-eight trillion, five hundred thirty billion, five hundred eighty-seven million, four hundred twenty-two thousand, six hundred eighteen".