13450681224 has 48 divisors (see below), whose sum is σ = 36435098700. Its totient is φ = 4482801024.

The previous prime is 13450681219. The next prime is 13450681259. The reversal of 13450681224 is 42218605431.

It is a happy number.

13450681224 is a `hidden beast` number, since 134 + 506 + 8 + 12 + 2 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10400328324 + 3050352900 = 101982^2 + 55230^2 .

It is a super-2 number, since 2×13450681224² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 553522 + ... + 577310.

Almost surely, 2^13450681224 is an apocalyptic number.

It is an amenable number.

13450681224 is an abundant number, since it is smaller than the sum of its proper divisors (22984417476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13450681224 is a wasteful number, since it uses less digits than its factorization.

13450681224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31654 (or 31647 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 13450681224 in words is "thirteen billion, four hundred fifty million, six hundred eighty-one thousand, two hundred twenty-four".