13851559884 has 48 divisors (see below), whose sum is σ = 34250317920. Its totient is φ = 4349237760.

The previous prime is 13851559823. The next prime is 13851559889. The reversal of 13851559884 is 48895515831.

It is a super-2 number, since 2×13851559884² (a number of 21 digits) contains 22 as substring.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (13851559889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471139 + ... + 499674.

It is an arithmetic number, because the mean of its divisors is an integer number (713548290).

Almost surely, 2^13851559884 is an apocalyptic number.

It is an amenable number.

13851559884 is an abundant number, since it is smaller than the sum of its proper divisors (20398758036).

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

13851559884 is a wasteful number, since it uses less digits than its factorization.

13851559884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970890 (or 970888 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 57.

The spelling of 13851559884 in words is "thirteen billion, eight hundred fifty-one million, five hundred fifty-nine thousand, eight hundred eighty-four".