13722587788 has 72 divisors (see below), whose sum is σ = 30365898192. Its totient is φ = 5377873536.

The previous prime is 13722587779. The next prime is 13722587821. The reversal of 13722587788 is 88778522731.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247470 + ... + 297802.

It is an arithmetic number, because the mean of its divisors is an integer number (421748586).

Almost surely, 2^13722587788 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 13722587788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15182949096).

13722587788 is an abundant number, since it is smaller than the sum of its proper divisors (16643310404).

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

13722587788 is a wasteful number, since it uses less digits than its factorization.

13722587788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50471 (or 50462 counting only the distinct ones).

The product of its digits is 10536960, while the sum is 58.

The spelling of 13722587788 in words is "thirteen billion, seven hundred twenty-two million, five hundred eighty-seven thousand, seven hundred eighty-eight".