1933495649 has 2 divisors, whose sum is σ = 1933495650. Its totient is φ = 1933495648.

The previous prime is 1933495609. The next prime is 1933495693. The reversal of 1933495649 is 9465943391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1932481600 + 1014049 = 43960^2 + 1007^2 .

It is a cyclic number.

It is not a de Polignac number, because 1933495649 - 2⁸ = 1933495393 is a prime.

It is a super-3 number, since 3×1933495649³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1933495649.

It is not a weakly prime, because it can be changed into another prime (1933495609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 966747824 + 966747825.

It is an arithmetic number, because the mean of its divisors is an integer number (966747825).

Almost surely, 2^1933495649 is an apocalyptic number.

It is an amenable number.

1933495649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1933495649 is an equidigital number, since it uses as much as digits as its factorization.

1933495649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3149280, while the sum is 53.

The square root of 1933495649 is about 43971.5322566772. The cubic root of 1933495649 is about 1245.7982975016.

The spelling of 1933495649 in words is "one billion, nine hundred thirty-three million, four hundred ninety-five thousand, six hundred forty-nine".