17211042730 has 48 divisors (see below), whose sum is σ = 36916830216. Its totient is φ = 5756997120.

The previous prime is 17211042727. The next prime is 17211042731. The reversal of 17211042730 is 3724011271.

It can be written as a sum of positive squares in 4 ways, for example, as 9091050409 + 8119992321 = 95347^2 + 90111^2 .

It is not an unprimeable number, because it can be changed into a prime (17211042731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408259 + ... + 448438.

Almost surely, 2^17211042730 is an apocalyptic number.

17211042730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17211042730 is an abundant number, since it is smaller than the sum of its proper divisors (19705787486).

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

17211042730 is a wasteful number, since it uses less digits than its factorization.

17211042730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856759 (or 856752 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

It can be divided in two parts, 172110 and 42730, that added together give a triangular number (214840 = T₆₅₅).

The spelling of 17211042730 in words is "seventeen billion, two hundred eleven million, forty-two thousand, seven hundred thirty".