78583256005 has 8 divisors (see below), whose sum is σ = 94640341752. Its totient is φ = 62639648448.

The previous prime is 78583255991. The next prime is 78583256051. The reversal of 78583256005 is 50065238587.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3392964 + 78579863041 = 1842^2 + 280321^2 .

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 78583256005 - 2⁹ = 78583255493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78583256005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28368022 + ... + 28370791.

It is an arithmetic number, because the mean of its divisors is an integer number (11830042719).

Almost surely, 2^78583256005 is an apocalyptic number.

It is an amenable number.

78583256005 is a deficient number, since it is larger than the sum of its proper divisors (16057085747).

78583256005 is a wasteful number, since it uses less digits than its factorization.

78583256005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56739095.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 78583256005 in words is "seventy-eight billion, five hundred eighty-three million, two hundred fifty-six thousand, five".