396226626457 has 2 divisors, whose sum is σ = 396226626458. Its totient is φ = 396226626456.

The previous prime is 396226626379. The next prime is 396226626461. The reversal of 396226626457 is 754626622693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376233797641 + 19992828816 = 613379^2 + 141396^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396226626457 is a prime.

It is a super-3 number, since 3×396226626457³ (a number of 36 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (396226626157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198113313228 + 198113313229.

It is an arithmetic number, because the mean of its divisors is an integer number (198113313229).

Almost surely, 2^396226626457 is an apocalyptic number.

It is an amenable number.

396226626457 is a deficient number, since it is larger than the sum of its proper divisors (1).

396226626457 is an equidigital number, since it uses as much as digits as its factorization.

396226626457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39191040, while the sum is 58.

The spelling of 396226626457 in words is "three hundred ninety-six billion, two hundred twenty-six million, six hundred twenty-six thousand, four hundred fifty-seven".