72078688687027 has 8 divisors (see below), whose sum is σ = 78829360474032. Its totient is φ = 65361027520800.

The previous prime is 72078688687001. The next prime is 72078688687073.

72078688687027 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 72078688687027 - 2⁴³ = 63282595664819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72078688637027) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8252650624 + ... + 8252659357.

It is an arithmetic number, because the mean of its divisors is an integer number (9853670059254).

Almost surely, 2^{72078688687027} is an apocalyptic number.

72078688687027 is a deficient number, since it is larger than the sum of its proper divisors (6750671787005).

72078688687027 is a wasteful number, since it uses less digits than its factorization.

72078688687027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16505310389.

The product of its (nonzero) digits is 1416167424, while the sum is 76.

The spelling of 72078688687027 in words is "seventy-two trillion, seventy-eight billion, six hundred eighty-eight million, six hundred eighty-seven thousand, twenty-seven".