212512716651 has 8 divisors (see below), whose sum is σ = 284097916480. Its totient is φ = 141301330632.

The previous prime is 212512716641. The next prime is 212512716683. The reversal of 212512716651 is 156617215212.

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

It is not a de Polignac number, because 212512716651 - 2⁶ = 212512716587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212512716641) 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, 93452125 + ... + 93454398.

It is an arithmetic number, because the mean of its divisors is an integer number (35512239560).

Almost surely, 2^212512716651 is an apocalyptic number.

212512716651 is a deficient number, since it is larger than the sum of its proper divisors (71585199829).

212512716651 is a wasteful number, since it uses less digits than its factorization.

212512716651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186906905.

The product of its digits is 50400, while the sum is 39.

The spelling of 212512716651 in words is "two hundred twelve billion, five hundred twelve million, seven hundred sixteen thousand, six hundred fifty-one".