65212426093657 has 2 divisors, whose sum is σ = 65212426093658. Its totient is φ = 65212426093656.

The previous prime is 65212426093601. The next prime is 65212426093687. The reversal of 65212426093657 is 75639062421256.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41826797108496 + 23385628985161 = 6467364^2 + 4835869^2 .

It is a cyclic number.

It is not a de Polignac number, because 65212426093657 - 2¹⁵ = 65212426060889 is a prime.

It is not a weakly prime, because it can be changed into another prime (65212426093687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32606213046828 + 32606213046829.

It is an arithmetic number, because the mean of its divisors is an integer number (32606213046829).

Almost surely, 2^{65212426093657} is an apocalyptic number.

It is an amenable number.

65212426093657 is a deficient number, since it is larger than the sum of its proper divisors (1).

65212426093657 is an equidigital number, since it uses as much as digits as its factorization.

65212426093657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32659200, while the sum is 58.

The spelling of 65212426093657 in words is "sixty-five trillion, two hundred twelve billion, four hundred twenty-six million, ninety-three thousand, six hundred fifty-seven".