78142717624023 has 96 divisors (see below), whose sum is σ = 123881841720000. Its totient is φ = 47173566578688.

The previous prime is 78142717624003. The next prime is 78142717624057. The reversal of 78142717624023 is 32042671724187.

It is a happy number.

78142717624023 is a `hidden beast` number, since 7 + 8 + 1 + 4 + 2 + 7 + 1 + 7 + 624 + 0 + 2 + 3 = 666.

It is not a de Polignac number, because 78142717624023 - 2⁹ = 78142717623511 is a prime.

It is a super-3 number, since 3×78142717624023³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78142717624003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5898002103 + ... + 5898015351.

It is an arithmetic number, because the mean of its divisors is an integer number (1290435851250).

Almost surely, 2^{78142717624023} is an apocalyptic number.

78142717624023 is a deficient number, since it is larger than the sum of its proper divisors (45739124095977).

78142717624023 is a wasteful number, since it uses less digits than its factorization.

78142717624023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16401 (or 16398 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 54.

The spelling of 78142717624023 in words is "seventy-eight trillion, one hundred forty-two billion, seven hundred seventeen million, six hundred twenty-four thousand, twenty-three".