212540412287971 has 8 divisors (see below), whose sum is σ = 212657835480480. Its totient is φ = 212423006467392.

The previous prime is 212540412287893. The next prime is 212540412288007. The reversal of 212540412287971 is 179782214045212.

It is a happy number.

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 212540412287971 - 2²⁷ = 212540278070243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212540412287471) 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, 20171385 + ... + 28843813.

It is an arithmetic number, because the mean of its divisors is an integer number (26582229435060).

Almost surely, 2^{212540412287971} is an apocalyptic number.

212540412287971 is a deficient number, since it is larger than the sum of its proper divisors (117423192509).

212540412287971 is a wasteful number, since it uses less digits than its factorization.

212540412287971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685965.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 212540412287971 in words is "two hundred twelve trillion, five hundred forty billion, four hundred twelve million, two hundred eighty-seven thousand, nine hundred seventy-one".