13406406049 has 2 divisors, whose sum is σ = 13406406050. Its totient is φ = 13406406048.

The previous prime is 13406406047. The next prime is 13406406067. The reversal of 13406406049 is 94060460431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11915905600 + 1490500449 = 109160^2 + 38607^2 .

It is a cyclic number.

It is not a de Polignac number, because 13406406049 - 2¹ = 13406406047 is a prime.

Together with 13406406047, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13406405999 and 13406406017.

It is not a weakly prime, because it can be changed into another prime (13406406047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6703203024 + 6703203025.

It is an arithmetic number, because the mean of its divisors is an integer number (6703203025).

Almost surely, 2^13406406049 is an apocalyptic number.

It is an amenable number.

13406406049 is a deficient number, since it is larger than the sum of its proper divisors (1).

13406406049 is an equidigital number, since it uses as much as digits as its factorization.

13406406049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 13406406049 in words is "thirteen billion, four hundred six million, four hundred six thousand, forty-nine".