406424246279 has 2 divisors, whose sum is σ = 406424246280. Its totient is φ = 406424246278.

The previous prime is 406424246243. The next prime is 406424246303. The reversal of 406424246279 is 972642424604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406424246279 - 2¹² = 406424242183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406424246479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203212123139 + 203212123140.

It is an arithmetic number, because the mean of its divisors is an integer number (203212123140).

Almost surely, 2^406424246279 is an apocalyptic number.

406424246279 is a deficient number, since it is larger than the sum of its proper divisors (1).

406424246279 is an equidigital number, since it uses as much as digits as its factorization.

406424246279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4644864, while the sum is 50.

The spelling of 406424246279 in words is "four hundred six billion, four hundred twenty-four million, two hundred forty-six thousand, two hundred seventy-nine".