13278326747 has 8 divisors (see below), whose sum is σ = 15190551552. Its totient is φ = 11369932200.

The previous prime is 13278326729. The next prime is 13278326749. The reversal of 13278326747 is 74762387231.

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 13278326747 - 2¹⁴ = 13278310363 is a prime.

It is a super-3 number, since 3×13278326747³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13278326695 and 13278326704.

It is not an unprimeable number, because it can be changed into a prime (13278326749) 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, 950129 + ... + 964002.

It is an arithmetic number, because the mean of its divisors is an integer number (1898818944).

Almost surely, 2^13278326747 is an apocalyptic number.

13278326747 is a deficient number, since it is larger than the sum of its proper divisors (1912224805).

13278326747 is an equidigital number, since it uses as much as digits as its factorization.

13278326747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915129.

The product of its digits is 2370816, while the sum is 50.

The spelling of 13278326747 in words is "thirteen billion, two hundred seventy-eight million, three hundred twenty-six thousand, seven hundred forty-seven".