212729608379 has 4 divisors (see below), whose sum is σ = 212760931176. Its totient is φ = 212698285584.

The previous prime is 212729608331. The next prime is 212729608381. The reversal of 212729608379 is 973806927212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212729608379 - 2²⁰ = 212728559803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212729608319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15651209 + ... + 15664794.

It is an arithmetic number, because the mean of its divisors is an integer number (53190232794).

Almost surely, 2^212729608379 is an apocalyptic number.

212729608379 is a deficient number, since it is larger than the sum of its proper divisors (31322797).

212729608379 is an equidigital number, since it uses as much as digits as its factorization.

212729608379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31322796.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 212729608379 in words is "two hundred twelve billion, seven hundred twenty-nine million, six hundred eight thousand, three hundred seventy-nine".