13813773524 has 12 divisors (see below), whose sum is σ = 24177048084. Its totient is φ = 6906045504.

The previous prime is 13813773517. The next prime is 13813773529. The reversal of 13813773524 is 42537731831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1980250000 + 11833523524 = 44500^2 + 108782^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13813773529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172619 + ... + 239634.

It is an arithmetic number, because the mean of its divisors is an integer number (2014754007).

Almost surely, 2^13813773524 is an apocalyptic number.

It is an amenable number.

13813773524 is a deficient number, since it is larger than the sum of its proper divisors (10363274560).

13813773524 is a wasteful number, since it uses less digits than its factorization.

13813773524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420634 (or 420632 counting only the distinct ones).

The product of its digits is 423360, while the sum is 44.

The spelling of 13813773524 in words is "thirteen billion, eight hundred thirteen million, seven hundred seventy-three thousand, five hundred twenty-four".