212835075080557 has 2 divisors, whose sum is σ = 212835075080558. Its totient is φ = 212835075080556.

The previous prime is 212835075080539. The next prime is 212835075080659. The reversal of 212835075080557 is 755080570538212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161100343185961 + 51734731894596 = 12692531^2 + 7192686^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212835075080557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212835075080057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106417537540278 + 106417537540279.

It is an arithmetic number, because the mean of its divisors is an integer number (106417537540279).

Almost surely, 2^{212835075080557} is an apocalyptic number.

It is an amenable number.

212835075080557 is a deficient number, since it is larger than the sum of its proper divisors (1).

212835075080557 is an equidigital number, since it uses as much as digits as its factorization.

212835075080557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520000, while the sum is 58.

The spelling of 212835075080557 in words is "two hundred twelve trillion, eight hundred thirty-five billion, seventy-five million, eighty thousand, five hundred fifty-seven".