78352454016347 has 6 divisors (see below), whose sum is σ = 91144691406828. Its totient is φ = 67159246299684.

The previous prime is 78352454016283. The next prime is 78352454016371. The reversal of 78352454016347 is 74361045425387.

It is a happy number.

It is not a de Polignac number, because 78352454016347 - 2⁶ = 78352454016283 is a prime.

It is a super-2 number, since 2×78352454016347² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78352454018347) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 799514836853 + ... + 799514836950.

It is an arithmetic number, because the mean of its divisors is an integer number (15190781901138).

Almost surely, 2^{78352454016347} is an apocalyptic number.

78352454016347 is a deficient number, since it is larger than the sum of its proper divisors (12792237390481).

78352454016347 is a wasteful number, since it uses less digits than its factorization.

78352454016347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599029673817 (or 1599029673810 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 59.

The spelling of 78352454016347 in words is "seventy-eight trillion, three hundred fifty-two billion, four hundred fifty-four million, sixteen thousand, three hundred forty-seven".