1963770673 has 2 divisors, whose sum is σ = 1963770674. Its totient is φ = 1963770672.

The previous prime is 1963770643. The next prime is 1963770689. The reversal of 1963770673 is 3760773691.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1490577664 + 473193009 = 38608^2 + 21753^2 .

It is a cyclic number.

It is not a de Polignac number, because 1963770673 - 2¹³ = 1963762481 is a prime.

It is a super-2 number, since 2×1963770673² = 7712790512269745858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1963770643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 981885336 + 981885337.

It is an arithmetic number, because the mean of its divisors is an integer number (981885337).

Almost surely, 2^1963770673 is an apocalyptic number.

It is an amenable number.

1963770673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1963770673 is an equidigital number, since it uses as much as digits as its factorization.

1963770673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000188, while the sum is 49.

The square root of 1963770673 is about 44314.4521911306. The cubic root of 1963770673 is about 1252.2669631238.

The spelling of 1963770673 in words is "one billion, nine hundred sixty-three million, seven hundred seventy thousand, six hundred seventy-three".