406199515849 has 2 divisors, whose sum is σ = 406199515850. Its totient is φ = 406199515848.

The previous prime is 406199515837. The next prime is 406199515861. The reversal of 406199515849 is 948515991604.

It is a balanced prime because it is at equal distance from previous prime (406199515837) and next prime (406199515861).

It can be written as a sum of positive squares in only one way, i.e., 397269265849 + 8930250000 = 630293^2 + 94500^2 .

It is a cyclic number.

It is not a de Polignac number, because 406199515849 - 2⁷ = 406199515721 is a prime.

It is not a weakly prime, because it can be changed into another prime (406199515049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203099757924 + 203099757925.

It is an arithmetic number, because the mean of its divisors is an integer number (203099757925).

Almost surely, 2^406199515849 is an apocalyptic number.

It is an amenable number.

406199515849 is a deficient number, since it is larger than the sum of its proper divisors (1).

406199515849 is an equidigital number, since it uses as much as digits as its factorization.

406199515849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13996800, while the sum is 61.

The spelling of 406199515849 in words is "four hundred six billion, one hundred ninety-nine million, five hundred fifteen thousand, eight hundred forty-nine".