1969648801 has 2 divisors, whose sum is σ = 1969648802. Its totient is φ = 1969648800.

The previous prime is 1969648799. The next prime is 1969648819. The reversal of 1969648801 is 1088469691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1809651600 + 159997201 = 42540^2 + 12649^2 .

It is a cyclic number.

It is not a de Polignac number, because 1969648801 - 2¹ = 1969648799 is a prime.

Together with 1969648799, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1969648871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984824400 + 984824401.

It is an arithmetic number, because the mean of its divisors is an integer number (984824401).

Almost surely, 2^1969648801 is an apocalyptic number.

It is an amenable number.

1969648801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1969648801 is an equidigital number, since it uses as much as digits as its factorization.

1969648801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 52.

The square root of 1969648801 is about 44380.7255573858. The cubic root of 1969648801 is about 1253.5151830708.

The spelling of 1969648801 in words is "one billion, nine hundred sixty-nine million, six hundred forty-eight thousand, eight hundred one".