13865381048 has 8 divisors (see below), whose sum is σ = 25997589480. Its totient is φ = 6932690520.

The previous prime is 13865381041. The next prime is 13865381059. The reversal of 13865381048 is 84018356831.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 13865380993 and 13865381011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13865381041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 866586308 + ... + 866586323.

It is an arithmetic number, because the mean of its divisors is an integer number (3249698685).

Almost surely, 2^13865381048 is an apocalyptic number.

It is an amenable number.

13865381048 is a deficient number, since it is larger than the sum of its proper divisors (12132208432).

13865381048 is a wasteful number, since it uses less digits than its factorization.

13865381048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733172637 (or 1733172633 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 13865381048 in words is "thirteen billion, eight hundred sixty-five million, three hundred eighty-one thousand, forty-eight".