68395313547 has 80 divisors (see below), whose sum is σ = 115200983040. Its totient is φ = 40063507200.

The previous prime is 68395313543. The next prime is 68395313549. The reversal of 68395313547 is 74531359386.

68395313547 is a `hidden beast` number, since 6 + 8 + 3 + 95 + 3 + 1 + 3 + 547 = 666.

It is not a de Polignac number, because 68395313547 - 2² = 68395313543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68395313493 and 68395313502.

It is not an unprimeable number, because it can be changed into a prime (68395313543) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 41126838 + ... + 41128500.

It is an arithmetic number, because the mean of its divisors is an integer number (1440012288).

Almost surely, 2^68395313547 is an apocalyptic number.

68395313547 is a deficient number, since it is larger than the sum of its proper divisors (46805669493).

68395313547 is a wasteful number, since it uses less digits than its factorization.

68395313547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206 (or 3197 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 54.

The spelling of 68395313547 in words is "sixty-eight billion, three hundred ninety-five million, three hundred thirteen thousand, five hundred forty-seven".