13861650768 has 160 divisors (see below), whose sum is σ = 42085401600. Its totient is φ = 3929627520.

The previous prime is 13861650739. The next prime is 13861650779. The reversal of 13861650768 is 86705616831.

It is a self number, because there is not a number n which added to its sum of digits gives 13861650768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2153571 + ... + 2159997.

It is an arithmetic number, because the mean of its divisors is an integer number (263033760).

Almost surely, 2^13861650768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13861650768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21042700800).

13861650768 is an abundant number, since it is smaller than the sum of its proper divisors (28223750832).

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

13861650768 is a wasteful number, since it uses less digits than its factorization.

13861650768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6590 (or 6570 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 13861650768 in words is "thirteen billion, eight hundred sixty-one million, six hundred fifty thousand, seven hundred sixty-eight".