1795450661 has 2 divisors, whose sum is σ = 1795450662. Its totient is φ = 1795450660.

The previous prime is 1795450651. The next prime is 1795450663. The reversal of 1795450661 is 1660545971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1593526561 + 201924100 = 39919^2 + 14210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1795450661 is a prime.

It is a Sophie Germain prime.

Together with 1795450663, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1795450663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 897725330 + 897725331.

It is an arithmetic number, because the mean of its divisors is an integer number (897725331).

Almost surely, 2^1795450661 is an apocalyptic number.

It is an amenable number.

1795450661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1795450661 is an equidigital number, since it uses as much as digits as its factorization.

1795450661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 1795450661 is about 42372.7584775879. The cubic root of 1795450661 is about 1215.4147197562.

The spelling of 1795450661 in words is "one billion, seven hundred ninety-five million, four hundred fifty thousand, six hundred sixty-one".