65123839043 has 2 divisors, whose sum is σ = 65123839044. Its totient is φ = 65123839042.

The previous prime is 65123839013. The next prime is 65123839051. The reversal of 65123839043 is 34093832156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65123839043 - 2¹⁰ = 65123838019 is a prime.

It is a super-2 number, since 2×65123839043² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 65123838985 and 65123839003.

It is not a weakly prime, because it can be changed into another prime (65123839013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32561919521 + 32561919522.

It is an arithmetic number, because the mean of its divisors is an integer number (32561919522).

Almost surely, 2^65123839043 is an apocalyptic number.

65123839043 is a deficient number, since it is larger than the sum of its proper divisors (1).

65123839043 is an equidigital number, since it uses as much as digits as its factorization.

65123839043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 65123839043 in words is "sixty-five billion, one hundred twenty-three million, eight hundred thirty-nine thousand, forty-three".