209283372265 has 16 divisors (see below), whose sum is σ = 285882742656. Its totient is φ = 145588432000.

The previous prime is 209283372191. The next prime is 209283372299. The reversal of 209283372265 is 562273382902.

It is a de Polignac number, because none of the positive numbers 2^k-209283372265 is a prime.

It is a super-2 number, since 2×209283372265² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

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, 82719436 + ... + 82721965.

It is an arithmetic number, because the mean of its divisors is an integer number (17867671416).

Almost surely, 2^209283372265 is an apocalyptic number.

It is an amenable number.

209283372265 is a deficient number, since it is larger than the sum of its proper divisors (76599370391).

209283372265 is a wasteful number, since it uses less digits than its factorization.

209283372265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165441440.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 209283372265 in words is "two hundred nine billion, two hundred eighty-three million, three hundred seventy-two thousand, two hundred sixty-five".