2065423957 has 2 divisors, whose sum is σ = 2065423958. Its totient is φ = 2065423956.

The previous prime is 2065423909. The next prime is 2065423963. The reversal of 2065423957 is 7593245602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1057615441 + 1007808516 = 32521^2 + 31746^2 .

It is a cyclic number.

It is not a de Polignac number, because 2065423957 - 2¹⁵ = 2065391189 is a prime.

It is a super-2 number, since 2×2065423957² = 8531952244299075698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2065423457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032711978 + 1032711979.

It is an arithmetic number, because the mean of its divisors is an integer number (1032711979).

Almost surely, 2^2065423957 is an apocalyptic number.

It is an amenable number.

2065423957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2065423957 is an equidigital number, since it uses as much as digits as its factorization.

2065423957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 2065423957 is about 45446.9356172669. The cubic root of 2065423957 is about 1273.5120834845.

The spelling of 2065423957 in words is "two billion, sixty-five million, four hundred twenty-three thousand, nine hundred fifty-seven".