209675362942 has 16 divisors (see below), whose sum is σ = 331093699200. Its totient is φ = 99311707800.

The previous prime is 209675362907. The next prime is 209675363003. The reversal of 209675362942 is 249263576902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251559 + ... + 694717.

It is an arithmetic number, because the mean of its divisors is an integer number (20693356200).

Almost surely, 2^209675362942 is an apocalyptic number.

209675362942 is a deficient number, since it is larger than the sum of its proper divisors (121418336258).

209675362942 is a wasteful number, since it uses less digits than its factorization.

209675362942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455631.

The product of its (nonzero) digits is 9797760, while the sum is 55.

The spelling of 209675362942 in words is "two hundred nine billion, six hundred seventy-five million, three hundred sixty-two thousand, nine hundred forty-two".