209001741745 has 16 divisors (see below), whose sum is σ = 254071219968. Its totient is φ = 165036081600.

The previous prime is 209001741709. The next prime is 209001741799. The reversal of 209001741745 is 547147100902.

It is a de Polignac number, because none of the positive numbers 2^k-209001741745 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 209001741698 and 209001741707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 763069 + ... + 1000138.

It is an arithmetic number, because the mean of its divisors is an integer number (15879451248).

Almost surely, 2^209001741745 is an apocalyptic number.

It is an amenable number.

209001741745 is a deficient number, since it is larger than the sum of its proper divisors (45069478223).

209001741745 is a wasteful number, since it uses less digits than its factorization.

209001741745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763520.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 209001741745 in words is "two hundred nine billion, one million, seven hundred forty-one thousand, seven hundred forty-five".