408903740873 has 2 divisors, whose sum is σ = 408903740874. Its totient is φ = 408903740872.

The previous prime is 408903740857. The next prime is 408903740933. The reversal of 408903740873 is 378047309804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296079633424 + 112824107449 = 544132^2 + 335893^2 .

It is a cyclic number.

It is not a de Polignac number, because 408903740873 - 2⁴ = 408903740857 is a prime.

It is not a weakly prime, because it can be changed into another prime (408903740173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204451870436 + 204451870437.

It is an arithmetic number, because the mean of its divisors is an integer number (204451870437).

Almost surely, 2^408903740873 is an apocalyptic number.

It is an amenable number.

408903740873 is a deficient number, since it is larger than the sum of its proper divisors (1).

408903740873 is an equidigital number, since it uses as much as digits as its factorization.

408903740873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 408903740873 in words is "four hundred eight billion, nine hundred three million, seven hundred forty thousand, eight hundred seventy-three".