68383950547 has 4 divisors (see below), whose sum is σ = 74600673336. Its totient is φ = 62167227760.

The previous prime is 68383950541. The next prime is 68383950563. The reversal of 68383950547 is 74505938386.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 68383950547 - 2⁷ = 68383950419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68383950491 and 68383950500.

It is not an unprimeable number, because it can be changed into a prime (68383950541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3108361378 + ... + 3108361399.

It is an arithmetic number, because the mean of its divisors is an integer number (18650168334).

Almost surely, 2^68383950547 is an apocalyptic number.

68383950547 is a deficient number, since it is larger than the sum of its proper divisors (6216722789).

68383950547 is a wasteful number, since it uses less digits than its factorization.

68383950547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6216722788.

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 68383950547 in words is "sixty-eight billion, three hundred eighty-three million, nine hundred fifty thousand, five hundred forty-seven".