428106630293 has 2 divisors, whose sum is σ = 428106630294. Its totient is φ = 428106630292.

The previous prime is 428106630277. The next prime is 428106630361. The reversal of 428106630293 is 392036601824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 369345476644 + 58761153649 = 607738^2 + 242407^2 .

It is a cyclic number.

It is not a de Polignac number, because 428106630293 - 2⁴ = 428106630277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428106630223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214053315146 + 214053315147.

It is an arithmetic number, because the mean of its divisors is an integer number (214053315147).

Almost surely, 2^428106630293 is an apocalyptic number.

It is an amenable number.

428106630293 is a deficient number, since it is larger than the sum of its proper divisors (1).

428106630293 is an equidigital number, since it uses as much as digits as its factorization.

428106630293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 428106630293 in words is "four hundred twenty-eight billion, one hundred six million, six hundred thirty thousand, two hundred ninety-three".