13026731047 has 4 divisors (see below), whose sum is σ = 14210979336. Its totient is φ = 11842482760.

The previous prime is 13026731023. The next prime is 13026731057. The reversal of 13026731047 is 74013762031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13026731047 - 2¹¹ = 13026728999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13026731017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592124128 + ... + 592124149.

It is an arithmetic number, because the mean of its divisors is an integer number (3552744834).

Almost surely, 2^13026731047 is an apocalyptic number.

13026731047 is a deficient number, since it is larger than the sum of its proper divisors (1184248289).

13026731047 is a wasteful number, since it uses less digits than its factorization.

13026731047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184248288.

The product of its (nonzero) digits is 21168, while the sum is 34.

The spelling of 13026731047 in words is "thirteen billion, twenty-six million, seven hundred thirty-one thousand, forty-seven".