13651431226 has 8 divisors (see below), whose sum is σ = 20537910900. Its totient is φ = 6805460928.

The previous prime is 13651431197. The next prime is 13651431317. The reversal of 13651431226 is 62213415631.

It can be written as a sum of positive squares in 2 ways, for example, as 13087131201 + 564300025 = 114399^2 + 23755^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13651431191 and 13651431200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10126501 + ... + 10127848.

Almost surely, 2^13651431226 is an apocalyptic number.

13651431226 is a deficient number, since it is larger than the sum of its proper divisors (6886479674).

13651431226 is a wasteful number, since it uses less digits than its factorization.

13651431226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20254688.

The product of its digits is 25920, while the sum is 34.

Adding to 13651431226 its reverse (62213415631), we get a palindrome (75864846857).

The spelling of 13651431226 in words is "thirteen billion, six hundred fifty-one million, four hundred thirty-one thousand, two hundred twenty-six".