209398747034 has 32 divisors (see below), whose sum is σ = 333541286400. Its totient is φ = 98317663920.

The previous prime is 209398747013. The next prime is 209398747039. The reversal of 209398747034 is 430747893902.

It is not an unprimeable number, because it can be changed into a prime (209398747039) 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 15 ways as a sum of consecutive naturals, for example, 3301529 + ... + 3364355.

It is an arithmetic number, because the mean of its divisors is an integer number (10423165200).

Almost surely, 2^209398747034 is an apocalyptic number.

209398747034 is a deficient number, since it is larger than the sum of its proper divisors (124142539366).

209398747034 is a wasteful number, since it uses less digits than its factorization.

209398747034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63618.

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 209398747034 in words is "two hundred nine billion, three hundred ninety-eight million, seven hundred forty-seven thousand, thirty-four".