13544120412 has 18 divisors (see below), whose sum is σ = 34236526688. Its totient is φ = 4514706792.

The previous prime is 13544120411. The next prime is 13544120419. The reversal of 13544120412 is 21402144531.

13544120412 is a `hidden beast` number, since 1 + 3 + 5 + 441 + 204 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13544120411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 188112748 + ... + 188112819.

Almost surely, 2^13544120412 is an apocalyptic number.

13544120412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13544120412 is an abundant number, since it is smaller than the sum of its proper divisors (20692406276).

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

13544120412 is a wasteful number, since it uses less digits than its factorization.

13544120412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376225577 (or 376225572 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 13544120412 its reverse (21402144531), we get a palindrome (34946264943).

It can be divided in two parts, 13544 and 120412, that added together give a square (133956 = 366²).

The spelling of 13544120412 in words is "thirteen billion, five hundred forty-four million, one hundred twenty thousand, four hundred twelve".