406199515903 has 2 divisors, whose sum is σ = 406199515904. Its totient is φ = 406199515902.

The previous prime is 406199515861. The next prime is 406199515927. The reversal of 406199515903 is 309515991604.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406199515903 - 2³⁷ = 268760562431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406199515933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203099757951 + 203099757952.

It is an arithmetic number, because the mean of its divisors is an integer number (203099757952).

Almost surely, 2^406199515903 is an apocalyptic number.

406199515903 is a deficient number, since it is larger than the sum of its proper divisors (1).

406199515903 is an equidigital number, since it uses as much as digits as its factorization.

406199515903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1312200, while the sum is 52.

The spelling of 406199515903 in words is "four hundred six billion, one hundred ninety-nine million, five hundred fifteen thousand, nine hundred three".