13451434512 has 40 divisors (see below), whose sum is σ = 34759171104. Its totient is φ = 4482568704.

The previous prime is 13451434499. The next prime is 13451434523. The reversal of 13451434512 is 21543415431.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145123 + ... + 219005.

Almost surely, 2^13451434512 is an apocalyptic number.

13451434512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13451434512 is an abundant number, since it is smaller than the sum of its proper divisors (21307736592).

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

13451434512 is a wasteful number, since it uses less digits than its factorization.

13451434512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77687 (or 77681 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

Adding to 13451434512 its reverse (21543415431), we get a palindrome (34994849943).

The spelling of 13451434512 in words is "thirteen billion, four hundred fifty-one million, four hundred thirty-four thousand, five hundred twelve".