78042140544365 has 8 divisors (see below), whose sum is σ = 93653859080448. Its totient is φ = 62431518817360.

The previous prime is 78042140544353. The next prime is 78042140544371. The reversal of 78042140544365 is 56344504124087.

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

It is not a de Polignac number, because 78042140544365 - 2⁴⁰ = 76942628916589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274045721 + ... + 274330350.

It is an arithmetic number, because the mean of its divisors is an integer number (11706732385056).

Almost surely, 2^{78042140544365} is an apocalyptic number.

It is an amenable number.

78042140544365 is a deficient number, since it is larger than the sum of its proper divisors (15611718536083).

78042140544365 is a wasteful number, since it uses less digits than its factorization.

78042140544365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548404539.

The product of its (nonzero) digits is 12902400, while the sum is 53.

The spelling of 78042140544365 in words is "seventy-eight trillion, forty-two billion, one hundred forty million, five hundred forty-four thousand, three hundred sixty-five".