78425878245 has 64 divisors (see below), whose sum is σ = 148233915648. Its totient is φ = 34905600000.

The previous prime is 78425878211. The next prime is 78425878291. The reversal of 78425878245 is 54287852487.

It is not a de Polignac number, because 78425878245 - 2⁷ = 78425878117 is a prime.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 287245 + ... + 489245.

It is an arithmetic number, because the mean of its divisors is an integer number (2316154932).

Almost surely, 2^78425878245 is an apocalyptic number.

It is an amenable number.

78425878245 is a deficient number, since it is larger than the sum of its proper divisors (69808037403).

78425878245 is a wasteful number, since it uses less digits than its factorization.

78425878245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202214.

The product of its digits is 40140800, while the sum is 60.

The spelling of 78425878245 in words is "seventy-eight billion, four hundred twenty-five million, eight hundred seventy-eight thousand, two hundred forty-five".