13431788216 has 192 divisors, whose sum is σ = 33560110080. Its totient is φ = 4893546240.

The previous prime is 13431788143. The next prime is 13431788257. The reversal of 13431788216 is 61288713431.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15315170 + ... + 15316046.

It is an arithmetic number, because the mean of its divisors is an integer number (174792240).

Almost surely, 2^13431788216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13431788216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16780055040).

13431788216 is an abundant number, since it is smaller than the sum of its proper divisors (20128321864).

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

13431788216 is a wasteful number, since it uses less digits than its factorization.

13431788216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 967 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The spelling of 13431788216 in words is "thirteen billion, four hundred thirty-one million, seven hundred eighty-eight thousand, two hundred sixteen".