1649180363 has 2 divisors, whose sum is σ = 1649180364. Its totient is φ = 1649180362.

The previous prime is 1649180341. The next prime is 1649180389. The reversal of 1649180363 is 3630819461.

It is a weak prime.

It is an emirp because it is prime and its reverse (3630819461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1649180363 - 2¹² = 1649176267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1649180363.

It is not a weakly prime, because it can be changed into another prime (1649180963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 824590181 + 824590182.

It is an arithmetic number, because the mean of its divisors is an integer number (824590182).

Almost surely, 2^1649180363 is an apocalyptic number.

1649180363 is a deficient number, since it is larger than the sum of its proper divisors (1).

1649180363 is an equidigital number, since it uses as much as digits as its factorization.

1649180363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 1649180363 is about 40610.1017358982. The cubic root of 1649180363 is about 1181.4700540254.

The spelling of 1649180363 in words is "one billion, six hundred forty-nine million, one hundred eighty thousand, three hundred sixty-three".