1734618649 has 2 divisors, whose sum is σ = 1734618650. Its totient is φ = 1734618648.

The previous prime is 1734618637. The next prime is 1734618709. The reversal of 1734618649 is 9468164371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 885479049 + 849139600 = 29757^2 + 29140^2 .

It is a cyclic number.

It is not a de Polignac number, because 1734618649 - 2⁵ = 1734618617 is a prime.

It is not a weakly prime, because it can be changed into another prime (1734618619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 867309324 + 867309325.

It is an arithmetic number, because the mean of its divisors is an integer number (867309325).

Almost surely, 2^1734618649 is an apocalyptic number.

It is an amenable number.

1734618649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1734618649 is an equidigital number, since it uses as much as digits as its factorization.

1734618649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 49.

The square root of 1734618649 is about 41648.7532706563. The cubic root of 1734618649 is about 1201.5301427326.

The spelling of 1734618649 in words is "one billion, seven hundred thirty-four million, six hundred eighteen thousand, six hundred forty-nine".