19308268225 has 12 divisors (see below), whose sum is σ = 24270230956. Its totient is φ = 15235015680.

The previous prime is 19308268181. The next prime is 19308268247. The reversal of 19308268225 is 52286280391.

It can be written as a sum of positive squares in 6 ways, for example, as 966712464 + 18341555761 = 31092^2 + 135431^2 .

It is not a de Polignac number, because 19308268225 - 2⁷ = 19308268097 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 5288112 + ... + 5291761.

Almost surely, 2^19308268225 is an apocalyptic number.

It is an amenable number.

19308268225 is a deficient number, since it is larger than the sum of its proper divisors (4961962731).

19308268225 is a wasteful number, since it uses less digits than its factorization.

19308268225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10579956 (or 10579951 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 19308268225 in words is "nineteen billion, three hundred eight million, two hundred sixty-eight thousand, two hundred twenty-five".