13188504050 has 54 divisors (see below), whose sum is σ = 24925008213. Its totient is φ = 5191922880.

The previous prime is 13188504019. The next prime is 13188504059. The reversal of 13188504050 is 5040588131.

It can be written as a sum of positive squares in 14 ways, for example, as 1773504769 + 11414999281 = 42113^2 + 106841^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=81205.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13188504050.

It is not an unprimeable number, because it can be changed into a prime (13188504059) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 88513376 + ... + 88513524.

Almost surely, 2^13188504050 is an apocalyptic number.

13188504050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13188504050 is a deficient number, since it is larger than the sum of its proper divisors (11736504163).

13188504050 is an equidigital number, since it uses as much as digits as its factorization.

13188504050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The spelling of 13188504050 in words is "thirteen billion, one hundred eighty-eight million, five hundred four thousand, fifty".