78053796559 has 4 divisors (see below), whose sum is σ = 78231596080. Its totient is φ = 77875997040.

The previous prime is 78053796533. The next prime is 78053796577. The reversal of 78053796559 is 95569735087.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78053796559 - 2¹³ = 78053788367 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 78053796559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78053796959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88899102 + ... + 88899979.

It is an arithmetic number, because the mean of its divisors is an integer number (19557899020).

Almost surely, 2^78053796559 is an apocalyptic number.

78053796559 is a deficient number, since it is larger than the sum of its proper divisors (177799521).

78053796559 is a wasteful number, since it uses less digits than its factorization.

78053796559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177799520.

The product of its (nonzero) digits is 71442000, while the sum is 64.

The spelling of 78053796559 in words is "seventy-eight billion, fifty-three million, seven hundred ninety-six thousand, five hundred fifty-nine".