212074653577 has 2 divisors, whose sum is σ = 212074653578. Its totient is φ = 212074653576.

The previous prime is 212074653569. The next prime is 212074653613. The reversal of 212074653577 is 775356470212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210996910336 + 1077743241 = 459344^2 + 32829^2 .

It is a cyclic number.

It is not a de Polignac number, because 212074653577 - 2³ = 212074653569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212074653577.

It is not a weakly prime, because it can be changed into another prime (212074653547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106037326788 + 106037326789.

It is an arithmetic number, because the mean of its divisors is an integer number (106037326789).

Almost surely, 2^212074653577 is an apocalyptic number.

It is an amenable number.

212074653577 is a deficient number, since it is larger than the sum of its proper divisors (1).

212074653577 is an equidigital number, since it uses as much as digits as its factorization.

212074653577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2469600, while the sum is 49.

The spelling of 212074653577 in words is "two hundred twelve billion, seventy-four million, six hundred fifty-three thousand, five hundred seventy-seven".