1937650489 has 2 divisors, whose sum is σ = 1937650490. Its totient is φ = 1937650488.

The previous prime is 1937650453. The next prime is 1937650513. The reversal of 1937650489 is 9840567391.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1371591225 + 566059264 = 37035^2 + 23792^2 .

It is a cyclic number.

It is not a de Polignac number, because 1937650489 - 2⁹ = 1937649977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1937650439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 968825244 + 968825245.

It is an arithmetic number, because the mean of its divisors is an integer number (968825245).

Almost surely, 2^1937650489 is an apocalyptic number.

It is an amenable number.

1937650489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1937650489 is an equidigital number, since it uses as much as digits as its factorization.

1937650489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 1937650489 is about 44018.7515611245. The cubic root of 1937650489 is about 1246.6900139167.

The spelling of 1937650489 in words is "one billion, nine hundred thirty-seven million, six hundred fifty thousand, four hundred eighty-nine".