13247445077 has 4 divisors (see below), whose sum is σ = 13247783040. Its totient is φ = 13247107116.

The previous prime is 13247445073. The next prime is 13247445083. The reversal of 13247445077 is 77054474231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13247445077 - 2² = 13247445073 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 (13247445073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101093 + ... + 191610.

It is an arithmetic number, because the mean of its divisors is an integer number (3311945760).

Almost surely, 2^13247445077 is an apocalyptic number.

It is an amenable number.

13247445077 is a deficient number, since it is larger than the sum of its proper divisors (337963).

13247445077 is an equidigital number, since it uses as much as digits as its factorization.

13247445077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337962.

The product of its (nonzero) digits is 658560, while the sum is 44.

The spelling of 13247445077 in words is "thirteen billion, two hundred forty-seven million, four hundred forty-five thousand, seventy-seven".