405050840801 has 2 divisors, whose sum is σ = 405050840802. Its totient is φ = 405050840800.

The previous prime is 405050840791. The next prime is 405050840809. The reversal of 405050840801 is 108048050504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224467488400 + 180583352401 = 473780^2 + 424951^2 .

It is a cyclic number.

It is not a de Polignac number, because 405050840801 - 2¹⁰ = 405050839777 is a prime.

It is not a weakly prime, because it can be changed into another prime (405050840809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202525420400 + 202525420401.

It is an arithmetic number, because the mean of its divisors is an integer number (202525420401).

Almost surely, 2^405050840801 is an apocalyptic number.

It is an amenable number.

405050840801 is a deficient number, since it is larger than the sum of its proper divisors (1).

405050840801 is an equidigital number, since it uses as much as digits as its factorization.

405050840801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25600, while the sum is 35.

The spelling of 405050840801 in words is "four hundred five billion, fifty million, eight hundred forty thousand, eight hundred one".