13826381946 has 16 divisors (see below), whose sum is σ = 29779899744. Its totient is φ = 4254271344.

The previous prime is 13826381941. The next prime is 13826381983. The reversal of 13826381946 is 64918362831.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13826381941) 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, 88630576 + ... + 88630731.

It is an arithmetic number, because the mean of its divisors is an integer number (1861243734).

Almost surely, 2^13826381946 is an apocalyptic number.

13826381946 is an abundant number, since it is smaller than the sum of its proper divisors (15953517798).

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

13826381946 is a wasteful number, since it uses less digits than its factorization.

13826381946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177261325.

The product of its digits is 1492992, while the sum is 51.

The spelling of 13826381946 in words is "thirteen billion, eight hundred twenty-six million, three hundred eighty-one thousand, nine hundred forty-six".