13619823616 has 99 divisors (see below), whose sum is σ = 31732370877. Its totient is φ = 5825863680.

The previous prime is 13619823611. The next prime is 13619823643. The reversal of 13619823616 is 61632891631.

The square root of 13619823616 is 116704.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3905750016 + 9714073600 = 62496^2 + 98560^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13619823611) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 26141436 + ... + 26141956.

Almost surely, 2^13619823616 is an apocalyptic number.

13619823616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

13619823616 is the 116704-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13619823616

13619823616 is an abundant number, since it is smaller than the sum of its proper divisors (18112547261).

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

13619823616 is an frugal number, since it uses more digits than its factorization.

13619823616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076 (or 530 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The spelling of 13619823616 in words is "thirteen billion, six hundred nineteen million, eight hundred twenty-three thousand, six hundred sixteen".