380218884421 has 2 divisors, whose sum is σ = 380218884422. Its totient is φ = 380218884420.

The previous prime is 380218884413. The next prime is 380218884449. The reversal of 380218884421 is 124488812083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366461940321 + 13756944100 = 605361^2 + 117290^2 .

It is a cyclic number.

It is not a de Polignac number, because 380218884421 - 2³ = 380218884413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380218884401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190109442210 + 190109442211.

It is an arithmetic number, because the mean of its divisors is an integer number (190109442211).

Almost surely, 2^380218884421 is an apocalyptic number.

It is an amenable number.

380218884421 is a deficient number, since it is larger than the sum of its proper divisors (1).

380218884421 is an equidigital number, since it uses as much as digits as its factorization.

380218884421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 786432, while the sum is 49.

The spelling of 380218884421 in words is "three hundred eighty billion, two hundred eighteen million, eight hundred eighty-four thousand, four hundred twenty-one".