65947124839 has 2 divisors, whose sum is σ = 65947124840. Its totient is φ = 65947124838.

The previous prime is 65947124777. The next prime is 65947124849. The reversal of 65947124839 is 93842174956.

65947124839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65947124839 - 2¹³ = 65947116647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65947124849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32973562419 + 32973562420.

It is an arithmetic number, because the mean of its divisors is an integer number (32973562420).

Almost surely, 2^65947124839 is an apocalyptic number.

65947124839 is a deficient number, since it is larger than the sum of its proper divisors (1).

65947124839 is an equidigital number, since it uses as much as digits as its factorization.

65947124839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 58.

The spelling of 65947124839 in words is "sixty-five billion, nine hundred forty-seven million, one hundred twenty-four thousand, eight hundred thirty-nine".