406396524109 has 2 divisors, whose sum is σ = 406396524110. Its totient is φ = 406396524108.

The previous prime is 406396524103. The next prime is 406396524143. The reversal of 406396524109 is 901425693604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377333775625 + 29062748484 = 614275^2 + 170478^2 .

It is a cyclic number.

It is not a de Polignac number, because 406396524109 - 2⁵ = 406396524077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406396524103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203198262054 + 203198262055.

It is an arithmetic number, because the mean of its divisors is an integer number (203198262055).

Almost surely, 2^406396524109 is an apocalyptic number.

It is an amenable number.

406396524109 is a deficient number, since it is larger than the sum of its proper divisors (1).

406396524109 is an equidigital number, since it uses as much as digits as its factorization.

406396524109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 406396524109 in words is "four hundred six billion, three hundred ninety-six million, five hundred twenty-four thousand, one hundred nine".