13542265573 has 2 divisors, whose sum is σ = 13542265574. Its totient is φ = 13542265572.

The previous prime is 13542265571. The next prime is 13542265579. The reversal of 13542265573 is 37556224531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10653955524 + 2888310049 = 103218^2 + 53743^2 .

It is a cyclic number.

It is not a de Polignac number, because 13542265573 - 2¹ = 13542265571 is a prime.

It is a super-2 number, since 2×13542265573² (a number of 21 digits) contains 22 as substring.

Together with 13542265571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13542265571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6771132786 + 6771132787.

It is an arithmetic number, because the mean of its divisors is an integer number (6771132787).

Almost surely, 2^13542265573 is an apocalyptic number.

It is an amenable number.

13542265573 is a deficient number, since it is larger than the sum of its proper divisors (1).

13542265573 is an equidigital number, since it uses as much as digits as its factorization.

13542265573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756000, while the sum is 43.

The spelling of 13542265573 in words is "thirteen billion, five hundred forty-two million, two hundred sixty-five thousand, five hundred seventy-three".