13440403601 has 2 divisors, whose sum is σ = 13440403602. Its totient is φ = 13440403600.

The previous prime is 13440403567. The next prime is 13440403607. The reversal of 13440403601 is 10630404431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13081869376 + 358534225 = 114376^2 + 18935^2 .

It is a cyclic number.

It is not a de Polignac number, because 13440403601 - 2¹⁴ = 13440387217 is a prime.

It is not a weakly prime, because it can be changed into another prime (13440403607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6720201800 + 6720201801.

It is an arithmetic number, because the mean of its divisors is an integer number (6720201801).

Almost surely, 2^13440403601 is an apocalyptic number.

It is an amenable number.

13440403601 is a deficient number, since it is larger than the sum of its proper divisors (1).

13440403601 is an equidigital number, since it uses as much as digits as its factorization.

13440403601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 13440403601 in words is "thirteen billion, four hundred forty million, four hundred three thousand, six hundred one".