480450019981 has 2 divisors, whose sum is σ = 480450019982. Its totient is φ = 480450019980.

The previous prime is 480450019939. The next prime is 480450019993. The reversal of 480450019981 is 189910054084.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 389239979881 + 91210040100 = 623891^2 + 302010^2 .

It is a cyclic number.

It is not a de Polignac number, because 480450019981 - 2⁷ = 480450019853 is a prime.

It is a super-2 number, since 2×480450019981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (480450019681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240225009990 + 240225009991.

It is an arithmetic number, because the mean of its divisors is an integer number (240225009991).

Almost surely, 2^480450019981 is an apocalyptic number.

It is an amenable number.

480450019981 is a deficient number, since it is larger than the sum of its proper divisors (1).

480450019981 is an equidigital number, since it uses as much as digits as its factorization.

480450019981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 480450019981 in words is "four hundred eighty billion, four hundred fifty million, nineteen thousand, nine hundred eighty-one".