13449217015477 has 2 divisors, whose sum is σ = 13449217015478. Its totient is φ = 13449217015476.

The previous prime is 13449217015439. The next prime is 13449217015501. The reversal of 13449217015477 is 77451071294431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10198819086481 + 3250397928996 = 3193559^2 + 1802886^2 .

It is a cyclic number.

It is not a de Polignac number, because 13449217015477 - 2⁷ = 13449217015349 is a prime.

It is a super-4 number, since 4×13449217015477⁴ (a number of 54 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13449217015427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6724608507738 + 6724608507739.

It is an arithmetic number, because the mean of its divisors is an integer number (6724608507739).

Almost surely, 2^{13449217015477} is an apocalyptic number.

It is an amenable number.

13449217015477 is a deficient number, since it is larger than the sum of its proper divisors (1).

13449217015477 is an equidigital number, since it uses as much as digits as its factorization.

13449217015477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 13449217015477 in words is "thirteen trillion, four hundred forty-nine billion, two hundred seventeen million, fifteen thousand, four hundred seventy-seven".