11802317522 has 6 divisors (see below), whose sum is σ = 17703706743. Its totient is φ = 5901081942.

The previous prime is 11802317503. The next prime is 11802317539. The reversal of 11802317522 is 22571320811.

It can be written as a sum of positive squares in only one way, i.e., 5901158761 + 5901158761 = 76819^2 + 76819^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=76819.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 115229 + ... + 192047.

Almost surely, 2^11802317522 is an apocalyptic number.

11802317522 is a deficient number, since it is larger than the sum of its proper divisors (5901389221).

11802317522 is an frugal number, since it uses more digits than its factorization.

11802317522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153640 (or 76821 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

Multiplying 11802317522 by its sum of digits (32), we get a square (377674160704 = 614552²).

The spelling of 11802317522 in words is "eleven billion, eight hundred two million, three hundred seventeen thousand, five hundred twenty-two".