13351981450 has 12 divisors (see below), whose sum is σ = 24834685590. Its totient is φ = 5340792560.

The previous prime is 13351981439. The next prime is 13351981457. The reversal of 13351981450 is 5418915331.

13351981450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 11928353089 + 1423628361 = 109217^2 + 37731^2 .

It is a super-2 number, since 2×13351981450² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13351981457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133519765 + ... + 133519864.

Almost surely, 2^13351981450 is an apocalyptic number.

13351981450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13351981450 is a deficient number, since it is larger than the sum of its proper divisors (11482704140).

13351981450 is a wasteful number, since it uses less digits than its factorization.

13351981450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267039641 (or 267039636 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 13351981450 in words is "thirteen billion, three hundred fifty-one million, nine hundred eighty-one thousand, four hundred fifty".