13208428577 has 4 divisors (see below), whose sum is σ = 13208675376. Its totient is φ = 13208181780.

The previous prime is 13208428489. The next prime is 13208428603. The reversal of 13208428577 is 77582480231.

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 a de Polignac number, because none of the positive numbers 2^k-13208428577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13208427577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5699 + ... + 162632.

It is an arithmetic number, because the mean of its divisors is an integer number (3302168844).

Almost surely, 2^13208428577 is an apocalyptic number.

It is an amenable number.

13208428577 is a deficient number, since it is larger than the sum of its proper divisors (246799).

13208428577 is an equidigital number, since it uses as much as digits as its factorization.

13208428577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246798.

The product of its (nonzero) digits is 752640, while the sum is 47.

The spelling of 13208428577 in words is "thirteen billion, two hundred eight million, four hundred twenty-eight thousand, five hundred seventy-seven".