212478735590 has 32 divisors (see below), whose sum is σ = 417286435104. Its totient is φ = 77254723840.

The previous prime is 212478735589. The next prime is 212478735617. The reversal of 212478735590 is 95537874212.

212478735590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728762 + ... + 977778.

It is an arithmetic number, because the mean of its divisors is an integer number (13040201097).

Almost surely, 2^212478735590 is an apocalyptic number.

212478735590 is a deficient number, since it is larger than the sum of its proper divisors (204807699514).

212478735590 is a wasteful number, since it uses less digits than its factorization.

212478735590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256792.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 212478735590 in words is "two hundred twelve billion, four hundred seventy-eight million, seven hundred thirty-five thousand, five hundred ninety".