13138777447060 has 12 divisors (see below), whose sum is σ = 27591432638868. Its totient is φ = 5255510978816.

The previous prime is 13138777447051. The next prime is 13138777447067. The reversal of 13138777447060 is 6074477783131.

13138777447060 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 2 ways, for example, as 7164380276496 + 5974397170564 = 2676636^2 + 2444258^2 .

It is a super-2 number, since 2×13138777447060² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13138777446986 and 13138777447004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13138777447067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328469436157 + ... + 328469436196.

It is an arithmetic number, because the mean of its divisors is an integer number (2299286053239).

Almost surely, 2^{13138777447060} is an apocalyptic number.

13138777447060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13138777447060 is an abundant number, since it is smaller than the sum of its proper divisors (14452655191808).

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

13138777447060 is a wasteful number, since it uses less digits than its factorization.

13138777447060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656938872362 (or 656938872360 counting only the distinct ones).

The product of its (nonzero) digits is 16595712, while the sum is 58.

The spelling of 13138777447060 in words is "thirteen trillion, one hundred thirty-eight billion, seven hundred seventy-seven million, four hundred forty-seven thousand, sixty".