402421333247 has 2 divisors, whose sum is σ = 402421333248. Its totient is φ = 402421333246.

The previous prime is 402421333201. The next prime is 402421333273. The reversal of 402421333247 is 742333124204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402421333247 - 2²⁰ = 402420284671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402421333297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201210666623 + 201210666624.

It is an arithmetic number, because the mean of its divisors is an integer number (201210666624).

Almost surely, 2^402421333247 is an apocalyptic number.

402421333247 is a deficient number, since it is larger than the sum of its proper divisors (1).

402421333247 is an equidigital number, since it uses as much as digits as its factorization.

402421333247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 35.

The spelling of 402421333247 in words is "four hundred two billion, four hundred twenty-one million, three hundred thirty-three thousand, two hundred forty-seven".