13453473438 has 32 divisors (see below), whose sum is σ = 29921041920. Its totient is φ = 4480826040.

The previous prime is 13453473419. The next prime is 13453473487. The reversal of 13453473438 is 83437435431.

13453473438 is a `hidden beast` number, since 1 + 3 + 4 + 534 + 73 + 43 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 13453473393 and 13453473402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34720 + ... + 167667.

It is an arithmetic number, because the mean of its divisors is an integer number (935032560).

Almost surely, 2^13453473438 is an apocalyptic number.

13453473438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13453473438 is an abundant number, since it is smaller than the sum of its proper divisors (16467568482).

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

13453473438 is a wasteful number, since it uses less digits than its factorization.

13453473438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203629 (or 203623 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 45.

The spelling of 13453473438 in words is "thirteen billion, four hundred fifty-three million, four hundred seventy-three thousand, four hundred thirty-eight".