13078076520 has 128 divisors (see below), whose sum is σ = 39902544000. Its totient is φ = 3428536320.

The previous prime is 13078076519. The next prime is 13078076527. The reversal of 13078076520 is 2567087031.

It is not an unprimeable number, because it can be changed into a prime (13078076527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1908300 + ... + 1915140.

It is an arithmetic number, because the mean of its divisors is an integer number (311738625).

Almost surely, 2^13078076520 is an apocalyptic number.

13078076520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13078076520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19951272000).

13078076520 is an abundant number, since it is smaller than the sum of its proper divisors (26824467480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13078076520 is a wasteful number, since it uses less digits than its factorization.

13078076520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7123 (or 7119 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 13078076520 in words is "thirteen billion, seventy-eight million, seventy-six thousand, five hundred twenty".