13531132512 has 48 divisors (see below), whose sum is σ = 39465805680. Its totient is φ = 4510377216.

The previous prime is 13531132493. The next prime is 13531132513. The reversal of 13531132512 is 21523113531.

13531132512 is a `hidden beast` number, since 1 + 35 + 3 + 113 + 2 + 512 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531132513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7829653 + ... + 7831380.

It is an arithmetic number, because the mean of its divisors is an integer number (822204285).

Almost surely, 2^13531132512 is an apocalyptic number.

13531132512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13531132512 is an abundant number, since it is smaller than the sum of its proper divisors (25934673168).

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

13531132512 is a wasteful number, since it uses less digits than its factorization.

13531132512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15661052 (or 15661038 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The spelling of 13531132512 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-two thousand, five hundred twelve".