402424341491 has 2 divisors, whose sum is σ = 402424341492. Its totient is φ = 402424341490.

The previous prime is 402424341467. The next prime is 402424341559. The reversal of 402424341491 is 194143424204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402424341491 - 2⁶ = 402424341427 is a prime.

It is not a weakly prime, because it can be changed into another prime (402424340491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201212170745 + 201212170746.

It is an arithmetic number, because the mean of its divisors is an integer number (201212170746).

Almost surely, 2^402424341491 is an apocalyptic number.

402424341491 is a deficient number, since it is larger than the sum of its proper divisors (1).

402424341491 is an equidigital number, since it uses as much as digits as its factorization.

402424341491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 38.

Adding to 402424341491 its reverse (194143424204), we get a palindrome (596567765695).

The spelling of 402424341491 in words is "four hundred two billion, four hundred twenty-four million, three hundred forty-one thousand, four hundred ninety-one".