13449081712 has 40 divisors (see below), whose sum is σ = 28551779712. Its totient is φ = 6086270400.

The previous prime is 13449081671. The next prime is 13449081713. The reversal of 13449081712 is 21718094431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13449081713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128364 + ... + 208267.

Almost surely, 2^13449081712 is an apocalyptic number.

It is an amenable number.

13449081712 is an abundant number, since it is smaller than the sum of its proper divisors (15102698000).

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

13449081712 is a wasteful number, since it uses less digits than its factorization.

13449081712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336877 (or 336871 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 13449081712 in words is "thirteen billion, four hundred forty-nine million, eighty-one thousand, seven hundred twelve".