402205040647 has 2 divisors, whose sum is σ = 402205040648. Its totient is φ = 402205040646.

The previous prime is 402205040579. The next prime is 402205040651. The reversal of 402205040647 is 746040502204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402205040647 - 2¹⁵ = 402205007879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402205040687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201102520323 + 201102520324.

It is an arithmetic number, because the mean of its divisors is an integer number (201102520324).

Almost surely, 2^402205040647 is an apocalyptic number.

402205040647 is a deficient number, since it is larger than the sum of its proper divisors (1).

402205040647 is an equidigital number, since it uses as much as digits as its factorization.

402205040647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 34.

The spelling of 402205040647 in words is "four hundred two billion, two hundred five million, forty thousand, six hundred forty-seven".