289695633644 has 6 divisors (see below), whose sum is σ = 506967358884. Its totient is φ = 144847816820.

The previous prime is 289695633599. The next prime is 289695633707. The reversal of 289695633644 is 446336596982.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36211954202 + ... + 36211954209.

It is an arithmetic number, because the mean of its divisors is an integer number (84494559814).

Almost surely, 2^289695633644 is an apocalyptic number.

It is an amenable number.

289695633644 is a deficient number, since it is larger than the sum of its proper divisors (217271725240).

289695633644 is a wasteful number, since it uses less digits than its factorization.

289695633644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72423908415 (or 72423908413 counting only the distinct ones).

The product of its digits is 201553920, while the sum is 65.

The spelling of 289695633644 in words is "two hundred eighty-nine billion, six hundred ninety-five million, six hundred thirty-three thousand, six hundred forty-four".