78504381172341 has 6 divisors (see below), whose sum is σ = 113395217248950. Its totient is φ = 52336254114888.

The previous prime is 78504381172307. The next prime is 78504381172351. The reversal of 78504381172341 is 14327118340587.

78504381172341 is a `hidden beast` number, since 7 + 8 + 5 + 0 + 438 + 1 + 172 + 34 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 41976209999025 + 36528171173316 = 6478905^2 + 6043854^2 .

It is not a de Polignac number, because 78504381172341 - 2⁹ = 78504381171829 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78504381172351) 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, 4361354509566 + ... + 4361354509583.

It is an arithmetic number, because the mean of its divisors is an integer number (18899202874825).

Almost surely, 2^{78504381172341} is an apocalyptic number.

It is an amenable number.

78504381172341 is a deficient number, since it is larger than the sum of its proper divisors (34890836076609).

78504381172341 is a wasteful number, since it uses less digits than its factorization.

78504381172341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8722709019155 (or 8722709019152 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 78504381172341 in words is "seventy-eight trillion, five hundred four billion, three hundred eighty-one million, one hundred seventy-two thousand, three hundred forty-one".