13078629715813 has 8 divisors (see below), whose sum is σ = 13360510821240. Its totient is φ = 12798925298880.

The previous prime is 13078629715799. The next prime is 13078629715829. The reversal of 13078629715813 is 31851792687031.

13078629715813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3489958268449 + 9588671447364 = 1868143^2 + 3096558^2 .

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 13078629715813 - 2⁹ = 13078629715301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13078629710813) 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, 544159978 + ... + 544184011.

It is an arithmetic number, because the mean of its divisors is an integer number (1670063852655).

Almost surely, 2^{13078629715813} is an apocalyptic number.

It is an amenable number.

13078629715813 is a deficient number, since it is larger than the sum of its proper divisors (281881105427).

13078629715813 is a wasteful number, since it uses less digits than its factorization.

13078629715813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088344247.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 13078629715813 in words is "thirteen trillion, seventy-eight billion, six hundred twenty-nine million, seven hundred fifteen thousand, eight hundred thirteen".