13453533409 has 16 divisors (see below), whose sum is σ = 13795349760. Its totient is φ = 13115232000.

The previous prime is 13453533371. The next prime is 13453533427. The reversal of 13453533409 is 90433535431.

It is a cyclic number.

It is not a de Polignac number, because 13453533409 - 2¹⁷ = 13453402337 is a prime.

It is a super-2 number, since 2×13453533409² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13453533439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9034537 + ... + 9036025.

It is an arithmetic number, because the mean of its divisors is an integer number (862209360).

Almost surely, 2^13453533409 is an apocalyptic number.

It is an amenable number.

13453533409 is a deficient number, since it is larger than the sum of its proper divisors (341816351).

13453533409 is a wasteful number, since it uses less digits than its factorization.

13453533409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2520.

The product of its (nonzero) digits is 291600, while the sum is 40.

The spelling of 13453533409 in words is "thirteen billion, four hundred fifty-three million, five hundred thirty-three thousand, four hundred nine".