78105815353353 has 8 divisors (see below), whose sum is σ = 104424850319488. Its totient is φ = 51928661978064.

The previous prime is 78105815353333. The next prime is 78105815353369. The reversal of 78105815353353 is 35335351850187.

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

It is not a de Polignac number, because 78105815353353 - 2⁶ = 78105815353289 is a prime.

It is a super-2 number, since 2×78105815353353² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78105815353293 and 78105815353302.

It is not an unprimeable number, because it can be changed into a prime (78105815353333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35470396426 + ... + 35470398627.

It is an arithmetic number, because the mean of its divisors is an integer number (13053106289936).

Almost surely, 2^{78105815353353} is an apocalyptic number.

It is an amenable number.

78105815353353 is a deficient number, since it is larger than the sum of its proper divisors (26319034966135).

78105815353353 is a wasteful number, since it uses less digits than its factorization.

78105815353353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70940795423.

The product of its (nonzero) digits is 22680000, while the sum is 57.

The spelling of 78105815353353 in words is "seventy-eight trillion, one hundred five billion, eight hundred fifteen million, three hundred fifty-three thousand, three hundred fifty-three".