13534213072 has 20 divisors (see below), whose sum is σ = 26238042756. Its totient is φ = 6763105280.

The previous prime is 13534213039. The next prime is 13534213073. The reversal of 13534213072 is 27031243531.

It can be written as a sum of positive squares in 2 ways, for example, as 13387415616 + 146797456 = 115704^2 + 12116^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13534213073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222079 + ... + 276382.

Almost surely, 2^13534213072 is an apocalyptic number.

It is an amenable number.

13534213072 is a deficient number, since it is larger than the sum of its proper divisors (12703829684).

13534213072 is a wasteful number, since it uses less digits than its factorization.

13534213072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500166 (or 500160 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 13534213072 in words is "thirteen billion, five hundred thirty-four million, two hundred thirteen thousand, seventy-two".