78218848172035 has 32 divisors (see below), whose sum is σ = 97482575849472. Its totient is φ = 60205389108480.

The previous prime is 78218848172029. The next prime is 78218848172071. The reversal of 78218848172035 is 53027184881287.

It is not a de Polignac number, because 78218848172035 - 2¹³ = 78218848163843 is a prime.

It is a super-2 number, since 2×78218848172035² (a number of 29 digits) contains 22 as substring.

It is a Duffinian 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 31 ways as a sum of consecutive naturals, for example, 466306830 + ... + 466474540.

It is an arithmetic number, because the mean of its divisors is an integer number (3046330495296).

Almost surely, 2^{78218848172035} is an apocalyptic number.

78218848172035 is a deficient number, since it is larger than the sum of its proper divisors (19263727677437).

78218848172035 is a wasteful number, since it uses less digits than its factorization.

78218848172035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200203.

The product of its (nonzero) digits is 48168960, while the sum is 64.

The spelling of 78218848172035 in words is "seventy-eight trillion, two hundred eighteen billion, eight hundred forty-eight million, one hundred seventy-two thousand, thirty-five".