13771859728 has 40 divisors (see below), whose sum is σ = 29391350976. Its totient is φ = 6199152000.

The previous prime is 13771859711. The next prime is 13771859729. The reversal of 13771859728 is 82795817731.

It is not an unprimeable number, because it can be changed into a prime (13771859729) 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, 361723 + ... + 397978.

Almost surely, 2^13771859728 is an apocalyptic number.

It is an amenable number.

13771859728 is an abundant number, since it is smaller than the sum of its proper divisors (15619491248).

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

13771859728 is a wasteful number, since it uses less digits than its factorization.

13771859728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759823 (or 759817 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 58.

The spelling of 13771859728 in words is "thirteen billion, seven hundred seventy-one million, eight hundred fifty-nine thousand, seven hundred twenty-eight".