408367069849 has 2 divisors, whose sum is σ = 408367069850. Its totient is φ = 408367069848.

The previous prime is 408367069807. The next prime is 408367069889. The reversal of 408367069849 is 948960763804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253052259849 + 155314810000 = 503043^2 + 394100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-408367069849 is a prime.

It is not a weakly prime, because it can be changed into another prime (408367069889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204183534924 + 204183534925.

It is an arithmetic number, because the mean of its divisors is an integer number (204183534925).

Almost surely, 2^408367069849 is an apocalyptic number.

It is an amenable number.

408367069849 is a deficient number, since it is larger than the sum of its proper divisors (1).

408367069849 is an equidigital number, since it uses as much as digits as its factorization.

408367069849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62705664, while the sum is 64.

The spelling of 408367069849 in words is "four hundred eight billion, three hundred sixty-seven million, sixty-nine thousand, eight hundred forty-nine".