12533521534 has 8 divisors (see below), whose sum is σ = 18818917920. Its totient is φ = 6260548896.

The previous prime is 12533521529. The next prime is 12533521577. The reversal of 12533521534 is 43512533521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×12533521534³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12533521534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3103414 + ... + 3107449.

It is an arithmetic number, because the mean of its divisors is an integer number (2352364740).

Almost surely, 2^12533521534 is an apocalyptic number.

12533521534 is a deficient number, since it is larger than the sum of its proper divisors (6285396386).

12533521534 is a wasteful number, since it uses less digits than its factorization.

12533521534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6211874.

The product of its digits is 54000, while the sum is 34.

The spelling of 12533521534 in words is "twelve billion, five hundred thirty-three million, five hundred twenty-one thousand, five hundred thirty-four".