13422397645 has 4 divisors (see below), whose sum is σ = 16106877180. Its totient is φ = 10737918112.

The previous prime is 13422397643. The next prime is 13422397657. The reversal of 13422397645 is 54679322431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9123497289 + 4298900356 = 95517^2 + 65566^2 .

It is a cyclic number.

It is not a de Polignac number, because 13422397645 - 2¹ = 13422397643 is a prime.

It is a super-3 number, since 3×13422397645³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13422397595 and 13422397604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13422397643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1342239760 + ... + 1342239769.

It is an arithmetic number, because the mean of its divisors is an integer number (4026719295).

Almost surely, 2^13422397645 is an apocalyptic number.

It is an amenable number.

13422397645 is a deficient number, since it is larger than the sum of its proper divisors (2684479535).

13422397645 is an equidigital number, since it uses as much as digits as its factorization.

13422397645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2684479534.

The product of its digits is 1088640, while the sum is 46.

The spelling of 13422397645 in words is "thirteen billion, four hundred twenty-two million, three hundred ninety-seven thousand, six hundred forty-five".