78050078405 has 8 divisors (see below), whose sum is σ = 100864716792. Its totient is φ = 57636980928.

The previous prime is 78050078399. The next prime is 78050078441. The reversal of 78050078405 is 50487005087.

It can be written as a sum of positive squares in 4 ways, for example, as 17391806884 + 60658271521 = 131878^2 + 246289^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 78050078405 - 2⁸ = 78050078149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 600385154 + ... + 600385283.

It is an arithmetic number, because the mean of its divisors is an integer number (12608089599).

Almost surely, 2^78050078405 is an apocalyptic number.

It is an amenable number.

78050078405 is a deficient number, since it is larger than the sum of its proper divisors (22814638387).

78050078405 is a wasteful number, since it uses less digits than its factorization.

78050078405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200770455.

The product of its (nonzero) digits is 313600, while the sum is 44.

The spelling of 78050078405 in words is "seventy-eight billion, fifty million, seventy-eight thousand, four hundred five".