212553078848238 has 32 divisors (see below), whose sum is σ = 426949407751680. Its totient is φ = 70544480744160.

The previous prime is 212553078848207. The next prime is 212553078848269. The reversal of 212553078848238 is 832848870355212.

It is an interprime number because it is at equal distance from previous prime (212553078848207) and next prime (212553078848269).

It is a super-2 number, since 2×212553078848238² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81567273 + ... + 84132788.

It is an arithmetic number, because the mean of its divisors is an integer number (13342168992240).

Almost surely, 2^{212553078848238} is an apocalyptic number.

212553078848238 is an abundant number, since it is smaller than the sum of its proper divisors (214396328903442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212553078848238 is a wasteful number, since it uses less digits than its factorization.

212553078848238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165700992.

The product of its (nonzero) digits is 206438400, while the sum is 66.

The spelling of 212553078848238 in words is "two hundred twelve trillion, five hundred fifty-three billion, seventy-eight million, eight hundred forty-eight thousand, two hundred thirty-eight".