1630772849 has 2 divisors, whose sum is σ = 1630772850. Its totient is φ = 1630772848.

The previous prime is 1630772839. The next prime is 1630772879. The reversal of 1630772849 is 9482770361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1474022449 + 156750400 = 38393^2 + 12520^2 .

It is a cyclic number.

It is not a de Polignac number, because 1630772849 - 2⁴ = 1630772833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1630772839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815386424 + 815386425.

It is an arithmetic number, because the mean of its divisors is an integer number (815386425).

Almost surely, 2^1630772849 is an apocalyptic number.

It is an amenable number.

1630772849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630772849 is an equidigital number, since it uses as much as digits as its factorization.

1630772849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 1630772849 is about 40382.8286404011. The cubic root of 1630772849 is about 1177.0578933873.

The spelling of 1630772849 in words is "one billion, six hundred thirty million, seven hundred seventy-two thousand, eight hundred forty-nine".