403126618397 has 2 divisors, whose sum is σ = 403126618398. Its totient is φ = 403126618396.

The previous prime is 403126618369. The next prime is 403126618441. The reversal of 403126618397 is 793816621304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 402436715641 + 689902756 = 634379^2 + 26266^2 .

It is a cyclic number.

It is not a de Polignac number, because 403126618397 - 2¹⁶ = 403126552861 is a prime.

It is a super-2 number, since 2×403126618397² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403126611397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201563309198 + 201563309199.

It is an arithmetic number, because the mean of its divisors is an integer number (201563309199).

Almost surely, 2^403126618397 is an apocalyptic number.

It is an amenable number.

403126618397 is a deficient number, since it is larger than the sum of its proper divisors (1).

403126618397 is an equidigital number, since it uses as much as digits as its factorization.

403126618397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 403126618397 in words is "four hundred three billion, one hundred twenty-six million, six hundred eighteen thousand, three hundred ninety-seven".