13247189077 has 2 divisors, whose sum is σ = 13247189078. Its totient is φ = 13247189076.

The previous prime is 13247189051. The next prime is 13247189113. The reversal of 13247189077 is 77098174231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12403054161 + 844134916 = 111369^2 + 29054^2 .

It is a cyclic number.

It is not a de Polignac number, because 13247189077 - 2¹⁵ = 13247156309 is a prime.

It is a super-2 number, since 2×13247189077² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13247189077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13247184077) 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 as a sum of consecutive naturals, namely, 6623594538 + 6623594539.

It is an arithmetic number, because the mean of its divisors is an integer number (6623594539).

Almost surely, 2^13247189077 is an apocalyptic number.

It is an amenable number.

13247189077 is a deficient number, since it is larger than the sum of its proper divisors (1).

13247189077 is an equidigital number, since it uses as much as digits as its factorization.

13247189077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 592704, while the sum is 49.

The spelling of 13247189077 in words is "thirteen billion, two hundred forty-seven million, one hundred eighty-nine thousand, seventy-seven".