212329185790 has 16 divisors (see below), whose sum is σ = 398809601568. Its totient is φ = 81238992736.

The previous prime is 212329185779. The next prime is 212329185847. The reversal of 212329185790 is 97581923212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461584957 + ... + 461585416.

It is an arithmetic number, because the mean of its divisors is an integer number (24925600098).

Almost surely, 2^212329185790 is an apocalyptic number.

212329185790 is a deficient number, since it is larger than the sum of its proper divisors (186480415778).

212329185790 is a wasteful number, since it uses less digits than its factorization.

212329185790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923170403.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 212329185790 in words is "two hundred twelve billion, three hundred twenty-nine million, one hundred eighty-five thousand, seven hundred ninety".