68357340451 has 4 divisors (see below), whose sum is σ = 69034145904. Its totient is φ = 67680535000.

The previous prime is 68357340439. The next prime is 68357340599. The reversal of 68357340451 is 15404375386.

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

It is a cyclic number.

It is not a de Polignac number, because 68357340451 - 2¹³ = 68357332259 is a prime.

It is a super-3 number, since 3×68357340451³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68357340431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338402575 + ... + 338402776.

It is an arithmetic number, because the mean of its divisors is an integer number (17258536476).

Almost surely, 2^68357340451 is an apocalyptic number.

68357340451 is a deficient number, since it is larger than the sum of its proper divisors (676805453).

68357340451 is a wasteful number, since it uses less digits than its factorization.

68357340451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676805452.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 68357340451 in words is "sixty-eight billion, three hundred fifty-seven million, three hundred forty thousand, four hundred fifty-one".