212832261707991 has 8 divisors (see below), whose sum is σ = 284566812312960. Its totient is φ = 141492942787512.

The previous prime is 212832261707987. The next prime is 212832261708029. The reversal of 212832261707991 is 199707162238212.

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

It is not a de Polignac number, because 212832261707991 - 2² = 212832261707987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212832261707921) 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, 98807919865 + ... + 98807922018.

It is an arithmetic number, because the mean of its divisors is an integer number (35570851539120).

Almost surely, 2^{212832261707991} is an apocalyptic number.

212832261707991 is a deficient number, since it is larger than the sum of its proper divisors (71734550604969).

212832261707991 is a wasteful number, since it uses less digits than its factorization.

212832261707991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197615842245.

The product of its (nonzero) digits is 9144576, while the sum is 60.

The spelling of 212832261707991 in words is "two hundred twelve trillion, eight hundred thirty-two billion, two hundred sixty-one million, seven hundred seven thousand, nine hundred ninety-one".