406700036609 has 2 divisors, whose sum is σ = 406700036610. Its totient is φ = 406700036608.

The previous prime is 406700036599. The next prime is 406700036657. The reversal of 406700036609 is 906630007604.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285693457009 + 121006579600 = 534503^2 + 347860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406700036609 is a prime.

It is not a weakly prime, because it can be changed into another prime (406700036209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203350018304 + 203350018305.

It is an arithmetic number, because the mean of its divisors is an integer number (203350018305).

Almost surely, 2^406700036609 is an apocalyptic number.

It is an amenable number.

406700036609 is a deficient number, since it is larger than the sum of its proper divisors (1).

406700036609 is an equidigital number, since it uses as much as digits as its factorization.

406700036609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 406700036609 in words is "four hundred six billion, seven hundred million, thirty-six thousand, six hundred nine".