68424851214821 has 8 divisors (see below), whose sum is σ = 70058077842720. Its totient is φ = 66793531451472.

The previous prime is 68424851214781. The next prime is 68424851214823. The reversal of 68424851214821 is 12841215842486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68424851214821 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 (68424851214823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476643515 + ... + 476787048.

It is an arithmetic number, because the mean of its divisors is an integer number (8757259730340).

Almost surely, 2^{68424851214821} is an apocalyptic number.

It is an amenable number.

68424851214821 is a deficient number, since it is larger than the sum of its proper divisors (1633226627899).

68424851214821 is a wasteful number, since it uses less digits than its factorization.

68424851214821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953432275.

The product of its digits is 7864320, while the sum is 56.

The spelling of 68424851214821 in words is "sixty-eight trillion, four hundred twenty-four billion, eight hundred fifty-one million, two hundred fourteen thousand, eight hundred twenty-one".