78628586464653 has 8 divisors (see below), whose sum is σ = 111005063244288. Its totient is φ = 49335583664064.

The previous prime is 78628586464639. The next prime is 78628586464669. The reversal of 78628586464653 is 35646468582687.

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

It is not a de Polignac number, because 78628586464653 - 2¹⁶ = 78628586399117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78628586464693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770868494701 + ... + 770868494802.

It is an arithmetic number, because the mean of its divisors is an integer number (13875632905536).

Almost surely, 2^{78628586464653} is an apocalyptic number.

It is an amenable number.

78628586464653 is a deficient number, since it is larger than the sum of its proper divisors (32376476779635).

78628586464653 is a wasteful number, since it uses less digits than its factorization.

78628586464653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541736989523.

The product of its digits is 11147673600, while the sum is 78.

The spelling of 78628586464653 in words is "seventy-eight trillion, six hundred twenty-eight billion, five hundred eighty-six million, four hundred sixty-four thousand, six hundred fifty-three".