78112543041 has 24 divisors (see below), whose sum is σ = 128655956520. Its totient is φ = 45241652736.

The previous prime is 78112543039. The next prime is 78112543079. The reversal of 78112543041 is 14034521187.

78112543041 is a `hidden beast` number, since 78 + 1 + 1 + 2 + 543 + 0 + 41 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 27882320400 + 50230222641 = 166980^2 + 224121^2 .

It is not a de Polignac number, because 78112543041 - 2¹ = 78112543039 is a prime.

It is a super-2 number, since 2×78112543041² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78112542987 and 78112543005.

It is not an unprimeable number, because it can be changed into a prime (78112543241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19634146 + ... + 19638123.

It is an arithmetic number, because the mean of its divisors is an integer number (5360664855).

Almost surely, 2^78112543041 is an apocalyptic number.

It is an amenable number.

78112543041 is a deficient number, since it is larger than the sum of its proper divisors (50543413479).

78112543041 is a wasteful number, since it uses less digits than its factorization.

78112543041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39272305 (or 39272302 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 78112543041 in words is "seventy-eight billion, one hundred twelve million, five hundred forty-three thousand, forty-one".