13481851056 has 40 divisors (see below), whose sum is σ = 35153625024. Its totient is φ = 4451949120.

The previous prime is 13481851021. The next prime is 13481851057. The reversal of 13481851056 is 65015818431.

It is a junction number, because it is equal to n+sod(n) for n = 13481850999 and 13481851017.

It is not an unprimeable number, because it can be changed into a prime (13481851057) 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, 1307350 + ... + 1317621.

Almost surely, 2^13481851056 is an apocalyptic number.

13481851056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13481851056 is an abundant number, since it is smaller than the sum of its proper divisors (21671773968).

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

13481851056 is a wasteful number, since it uses less digits than its factorization.

13481851056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625089 (or 2625083 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 42.

The spelling of 13481851056 in words is "thirteen billion, four hundred eighty-one million, eight hundred fifty-one thousand, fifty-six".