78618142448663 has 8 divisors (see below), whose sum is σ = 78717425848320. Its totient is φ = 78518891842560.

The previous prime is 78618142448633. The next prime is 78618142448689. The reversal of 78618142448663 is 36684424181687.

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 78618142448663 - 2³⁸ = 78343264541719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78618142448593 and 78618142448602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78618142448623) 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, 3398858 + ... + 12991863.

It is an arithmetic number, because the mean of its divisors is an integer number (9839678231040).

Almost surely, 2^{78618142448663} is an apocalyptic number.

78618142448663 is a deficient number, since it is larger than the sum of its proper divisors (99283399657).

78618142448663 is a wasteful number, since it uses less digits than its factorization.

78618142448663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16396777.

The product of its digits is 297271296, while the sum is 68.

The spelling of 78618142448663 in words is "seventy-eight trillion, six hundred eighteen billion, one hundred forty-two million, four hundred forty-eight thousand, six hundred sixty-three".