209471275007 has 8 divisors (see below), whose sum is σ = 215272144416. Its totient is φ = 203677746912.

The previous prime is 209471274989. The next prime is 209471275103. The reversal of 209471275007 is 700572174902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 209471275007 - 2²² = 209467080703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209471275207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1777448 + ... + 1891629.

It is an arithmetic number, because the mean of its divisors is an integer number (26909018052).

Almost surely, 2^209471275007 is an apocalyptic number.

209471275007 is a deficient number, since it is larger than the sum of its proper divisors (5800869409).

209471275007 is a wasteful number, since it uses less digits than its factorization.

209471275007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670657.

The product of its (nonzero) digits is 246960, while the sum is 44.

The spelling of 209471275007 in words is "two hundred nine billion, four hundred seventy-one million, two hundred seventy-five thousand, seven".