78669747560013 has 8 divisors (see below), whose sum is σ = 104893071480288. Its totient is φ = 52446461006544.

The previous prime is 78669747560009. The next prime is 78669747560023. The reversal of 78669747560013 is 31006574796687.

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

It is not a de Polignac number, because 78669747560013 - 2² = 78669747560009 is a prime.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 78669747560013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78669747560023) 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, 3991506 + ... + 13163267.

It is an arithmetic number, because the mean of its divisors is an integer number (13111633935036).

Almost surely, 2^{78669747560013} is an apocalyptic number.

It is an amenable number.

78669747560013 is a deficient number, since it is larger than the sum of its proper divisors (26223323920275).

78669747560013 is a wasteful number, since it uses less digits than its factorization.

78669747560013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18683403.

The product of its (nonzero) digits is 320060160, while the sum is 69.

The spelling of 78669747560013 in words is "seventy-eight trillion, six hundred sixty-nine billion, seven hundred forty-seven million, five hundred sixty thousand, thirteen".