78245357026518 has 48 divisors (see below), whose sum is σ = 184945287938112. Its totient is φ = 23710494150000.

The previous prime is 78245357026379. The next prime is 78245357026531. The reversal of 78245357026518 is 81562075354287.

78245357026518 is a `hidden beast` number, since 7 + 8 + 2 + 4 + 5 + 3 + 570 + 2 + 6 + 51 + 8 = 666.

It is a super-2 number, since 2×78245357026518² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20217393 + ... + 23774643.

It is an arithmetic number, because the mean of its divisors is an integer number (3853026832044).

Almost surely, 2^{78245357026518} is an apocalyptic number.

78245357026518 is an abundant number, since it is smaller than the sum of its proper divisors (106699930911594).

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

78245357026518 is a wasteful number, since it uses less digits than its factorization.

78245357026518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3668361 (or 3668358 counting only the distinct ones).

The product of its (nonzero) digits is 112896000, while the sum is 63.

The spelling of 78245357026518 in words is "seventy-eight trillion, two hundred forty-five billion, three hundred fifty-seven million, twenty-six thousand, five hundred eighteen".