13440771450 has 60 divisors (see below), whose sum is σ = 37345443630. Its totient is φ = 3584204640.

The previous prime is 13440771403. The next prime is 13440771451. The reversal of 13440771450 is 5417704431.

13440771450 is a `hidden beast` number, since 1 + 3 + 440 + 77 + 145 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 6977093841 + 6463677609 = 83529^2 + 80397^2 .

It is a super-2 number, since 2×13440771450² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13440771451) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1655305 + ... + 1663404.

Almost surely, 2^13440771450 is an apocalyptic number.

13440771450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13440771450 is an abundant number, since it is smaller than the sum of its proper divisors (23904672180).

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

13440771450 is a wasteful number, since it uses less digits than its factorization.

13440771450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318733 (or 3318719 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The spelling of 13440771450 in words is "thirteen billion, four hundred forty million, seven hundred seventy-one thousand, four hundred fifty".