13816104621 has 16 divisors (see below), whose sum is σ = 20639293248. Its totient is φ = 8147088000.

The previous prime is 13816104593. The next prime is 13816104647. The reversal of 13816104621 is 12640161831.

It is not a de Polignac number, because 13816104621 - 2¹⁸ = 13815842477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13816104691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5656480 + ... + 5658921.

It is an arithmetic number, because the mean of its divisors is an integer number (1289955828).

Almost surely, 2^13816104621 is an apocalyptic number.

13816104621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13816104621 is a deficient number, since it is larger than the sum of its proper divisors (6823188627).

13816104621 is a wasteful number, since it uses less digits than its factorization.

13816104621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11315452.

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 13816104621 in words is "thirteen billion, eight hundred sixteen million, one hundred four thousand, six hundred twenty-one".