13771806944 has 36 divisors (see below), whose sum is σ = 30990517992. Its totient is φ = 5901450240.

The previous prime is 13771806941. The next prime is 13771806953. The reversal of 13771806944 is 44960817731.

It is a junction number, because it is equal to n+sod(n) for n = 13771806892 and 13771806901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13771806941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1752464 + ... + 1760304.

It is an arithmetic number, because the mean of its divisors is an integer number (860847722).

Almost surely, 2^13771806944 is an apocalyptic number.

13771806944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13771806944 is an abundant number, since it is smaller than the sum of its proper divisors (17218711048).

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

13771806944 is an frugal number, since it uses more digits than its factorization.

13771806944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15699 (or 7850 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 13771806944 in words is "thirteen billion, seven hundred seventy-one million, eight hundred six thousand, nine hundred forty-four".