13888338012 has 36 divisors (see below), whose sum is σ = 35159964840. Its totient is φ = 4622413152.

The previous prime is 13888338011. The next prime is 13888338017. The reversal of 13888338012 is 21083388831.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×13888338012² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13888338011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268983 + ... + 316430.

It is an arithmetic number, because the mean of its divisors is an integer number (976665690).

Almost surely, 2^13888338012 is an apocalyptic number.

13888338012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13888338012 is an abundant number, since it is smaller than the sum of its proper divisors (21271626828).

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

13888338012 is a wasteful number, since it uses less digits than its factorization.

13888338012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586082 (or 586077 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

It can be divided in two parts, 13 and 888338012, that added together give a square (888338025 = 29805²).

The spelling of 13888338012 in words is "thirteen billion, eight hundred eighty-eight million, three hundred thirty-eight thousand, twelve".