68448303439 has 16 divisors (see below), whose sum is σ = 73525294080. Its totient is φ = 63554626080.

The previous prime is 68448303433. The next prime is 68448303479. The reversal of 68448303439 is 93430384486.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68448303439 - 2³ = 68448303431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68448303431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273472 + ... + 460090.

It is an arithmetic number, because the mean of its divisors is an integer number (4595330880).

Almost surely, 2^68448303439 is an apocalyptic number.

68448303439 is a deficient number, since it is larger than the sum of its proper divisors (5076990641).

68448303439 is a wasteful number, since it uses less digits than its factorization.

68448303439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187110.

The product of its (nonzero) digits is 5971968, while the sum is 52.

The spelling of 68448303439 in words is "sixty-eight billion, four hundred forty-eight million, three hundred three thousand, four hundred thirty-nine".