209053676364 has 48 divisors (see below), whose sum is σ = 535225979232. Its totient is φ = 63110541312.

The previous prime is 209053676303. The next prime is 209053676393. The reversal of 209053676364 is 463676350902.

It is a happy 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, 12634069 + ... + 12650604.

It is an arithmetic number, because the mean of its divisors is an integer number (11150541234).

Almost surely, 2^209053676364 is an apocalyptic number.

It is an amenable number.

209053676364 is an abundant number, since it is smaller than the sum of its proper divisors (326172302868).

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

209053676364 is a wasteful number, since it uses less digits than its factorization.

209053676364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25284746 (or 25284744 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 51.

The spelling of 209053676364 in words is "two hundred nine billion, fifty-three million, six hundred seventy-six thousand, three hundred sixty-four".