212939719870 has 16 divisors (see below), whose sum is σ = 399956343840. Its totient is φ = 81472588384.

The previous prime is 212939719859. The next prime is 212939719871. The reversal of 212939719870 is 78917939212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212939719871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462912205 + ... + 462912664.

It is an arithmetic number, because the mean of its divisors is an integer number (24997271490).

Almost surely, 2^212939719870 is an apocalyptic number.

212939719870 is a deficient number, since it is larger than the sum of its proper divisors (187016623970).

212939719870 is a wasteful number, since it uses less digits than its factorization.

212939719870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925824899.

The product of its (nonzero) digits is 3429216, while the sum is 58.

The spelling of 212939719870 in words is "two hundred twelve billion, nine hundred thirty-nine million, seven hundred nineteen thousand, eight hundred seventy".