17770272242 has 6 divisors (see below), whose sum is σ = 26655691149. Its totient is φ = 8885041860.

The previous prime is 17770272241. The next prime is 17770272271. The reversal of 17770272242 is 24227207771.

It can be written as a sum of positive squares in 2 ways, for example, as 11731272721 + 6038999521 = 108311^2 + 77711^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=94261.

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 17770272242.

It is not an unprimeable number, because it can be changed into a prime (17770272241) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 141392 + ... + 235652.

Almost surely, 2^17770272242 is an apocalyptic number.

17770272242 is a deficient number, since it is larger than the sum of its proper divisors (8885418907).

17770272242 is an frugal number, since it uses more digits than its factorization.

17770272242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188524 (or 94263 counting only the distinct ones).

The product of its (nonzero) digits is 153664, while the sum is 41.

The spelling of 17770272242 in words is "seventeen billion, seven hundred seventy million, two hundred seventy-two thousand, two hundred forty-two".