380161638469 has 2 divisors, whose sum is σ = 380161638470. Its totient is φ = 380161638468.

The previous prime is 380161638407. The next prime is 380161638473. The reversal of 380161638469 is 964836161083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246077507844 + 134084130625 = 496062^2 + 366175^2 .

It is a cyclic number.

It is not a de Polignac number, because 380161638469 - 2¹⁹ = 380161114181 is a prime.

It is a super-2 number, since 2×380161638469² (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 (380161638169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190080819234 + 190080819235.

It is an arithmetic number, because the mean of its divisors is an integer number (190080819235).

Almost surely, 2^380161638469 is an apocalyptic number.

It is an amenable number.

380161638469 is a deficient number, since it is larger than the sum of its proper divisors (1).

380161638469 is an equidigital number, since it uses as much as digits as its factorization.

380161638469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 380161638469 in words is "three hundred eighty billion, one hundred sixty-one million, six hundred thirty-eight thousand, four hundred sixty-nine".