212699434727 has 8 divisors (see below), whose sum is σ = 235251766176. Its totient is φ = 191031508512.

The previous prime is 212699434709. The next prime is 212699434741. The reversal of 212699434727 is 727434996212.

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

It is not a de Polignac number, because 212699434727 - 2²⁴ = 212682657511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212699464727) 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, 221100803 + ... + 221101764.

It is an arithmetic number, because the mean of its divisors is an integer number (29406470772).

Almost surely, 2^212699434727 is an apocalyptic number.

212699434727 is a deficient number, since it is larger than the sum of its proper divisors (22552331449).

212699434727 is a wasteful number, since it uses less digits than its factorization.

212699434727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442202617.

The product of its digits is 9144576, while the sum is 56.

The spelling of 212699434727 in words is "two hundred twelve billion, six hundred ninety-nine million, four hundred thirty-four thousand, seven hundred twenty-seven".