68800056539 has 2 divisors, whose sum is σ = 68800056540. Its totient is φ = 68800056538.

The previous prime is 68800056509. The next prime is 68800056557. The reversal of 68800056539 is 93565000886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68800056539 - 2¹² = 68800052443 is a prime.

It is not a weakly prime, because it can be changed into another prime (68800056509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34400028269 + 34400028270.

It is an arithmetic number, because the mean of its divisors is an integer number (34400028270).

Almost surely, 2^68800056539 is an apocalyptic number.

68800056539 is a deficient number, since it is larger than the sum of its proper divisors (1).

68800056539 is an equidigital number, since it uses as much as digits as its factorization.

68800056539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 68800056539 in words is "sixty-eight billion, eight hundred million, fifty-six thousand, five hundred thirty-nine".