13851395136 has 84 divisors (see below), whose sum is σ = 40111989372. Its totient is φ = 4569513984.

The previous prime is 13851395059. The next prime is 13851395149. The reversal of 13851395136 is 63159315831.

13851395136 is a `hidden beast` number, since 1 + 38 + 513 + 95 + 13 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3047040000 + 10804355136 = 55200^2 + 103944^2 .

It is a super-2 number, since 2×13851395136² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13851395091 and 13851395100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68085 + ... + 179828.

It is an arithmetic number, because the mean of its divisors is an integer number (477523683).

Almost surely, 2^13851395136 is an apocalyptic number.

13851395136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13851395136 is an abundant number, since it is smaller than the sum of its proper divisors (26260594236).

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

13851395136 is a wasteful number, since it uses less digits than its factorization.

13851395136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248028 (or 248015 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The spelling of 13851395136 in words is "thirteen billion, eight hundred fifty-one million, three hundred ninety-five thousand, one hundred thirty-six".