78488926509583 has 8 divisors (see below), whose sum is σ = 81206388647280. Its totient is φ = 75772194200640.

The previous prime is 78488926509563. The next prime is 78488926509599. The reversal of 78488926509583 is 38590562988487.

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 78488926509583 - 2⁵ = 78488926509551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78488926509497 and 78488926509506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78488926509533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182238373 + ... + 182668558.

It is an arithmetic number, because the mean of its divisors is an integer number (10150798580910).

Almost surely, 2^{78488926509583} is an apocalyptic number.

78488926509583 is a deficient number, since it is larger than the sum of its proper divisors (2717462137697).

78488926509583 is a wasteful number, since it uses less digits than its factorization.

78488926509583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364914377.

The product of its (nonzero) digits is 8360755200, while the sum is 82.

The spelling of 78488926509583 in words is "seventy-eight trillion, four hundred eighty-eight billion, nine hundred twenty-six million, five hundred nine thousand, five hundred eighty-three".