369449780449 has 2 divisors, whose sum is σ = 369449780450. Its totient is φ = 369449780448.

The previous prime is 369449780423. The next prime is 369449780461. The reversal of 369449780449 is 944087944963.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237942010849 + 131507769600 = 487793^2 + 362640^2 .

It is a cyclic number.

It is not a de Polignac number, because 369449780449 - 2²³ = 369441391841 is a prime.

It is not a weakly prime, because it can be changed into another prime (369449780489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184724890224 + 184724890225.

It is an arithmetic number, because the mean of its divisors is an integer number (184724890225).

Almost surely, 2^369449780449 is an apocalyptic number.

It is an amenable number.

369449780449 is a deficient number, since it is larger than the sum of its proper divisors (1).

369449780449 is an equidigital number, since it uses as much as digits as its factorization.

369449780449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188116992, while the sum is 67.

The spelling of 369449780449 in words is "three hundred sixty-nine billion, four hundred forty-nine million, seven hundred eighty thousand, four hundred forty-nine".