13748697203447 has 4 divisors (see below), whose sum is σ = 13764267642840. Its totient is φ = 13733126764056.

The previous prime is 13748697203413. The next prime is 13748697203519. The reversal of 13748697203447 is 74430279684731.

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 13748697203447 - 2⁶ = 13748697203383 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 (13748697203047) 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, 7785218372 + ... + 7785220137.

It is an arithmetic number, because the mean of its divisors is an integer number (3441066910710).

Almost surely, 2^{13748697203447} is an apocalyptic number.

13748697203447 is a deficient number, since it is larger than the sum of its proper divisors (15570439393).

13748697203447 is an equidigital number, since it uses as much as digits as its factorization.

13748697203447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15570439392.

The product of its (nonzero) digits is 170698752, while the sum is 65.

The spelling of 13748697203447 in words is "thirteen trillion, seven hundred forty-eight billion, six hundred ninety-seven million, two hundred three thousand, four hundred forty-seven".