1780841480401 has 2 divisors, whose sum is σ = 1780841480402. Its totient is φ = 1780841480400.

The previous prime is 1780841480371. The next prime is 1780841480527. The reversal of 1780841480401 is 1040841480871.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1119670841025 + 661170639376 = 1058145^2 + 813124^2 .

It is a cyclic number.

It is not a de Polignac number, because 1780841480401 - 2¹³ = 1780841472209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1780841480701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 890420740200 + 890420740201.

It is an arithmetic number, because the mean of its divisors is an integer number (890420740201).

Almost surely, 2^{1780841480401} is an apocalyptic number.

It is an amenable number.

1780841480401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1780841480401 is an equidigital number, since it uses as much as digits as its factorization.

1780841480401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 229376, while the sum is 46.

The spelling of 1780841480401 in words is "one trillion, seven hundred eighty billion, eight hundred forty-one million, four hundred eighty thousand, four hundred one".