68471214781 has 8 divisors (see below), whose sum is σ = 68590609920. Its totient is φ = 68351894352.

The previous prime is 68471214767. The next prime is 68471214809. The reversal of 68471214781 is 18741217486.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68471214781 - 2¹⁹ = 68470690493 is a prime.

It is a super-2 number, since 2×68471214781² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68471214731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2003271 + ... + 2037163.

It is an arithmetic number, because the mean of its divisors is an integer number (8573826240).

Almost surely, 2^68471214781 is an apocalyptic number.

It is an amenable number.

68471214781 is a deficient number, since it is larger than the sum of its proper divisors (119395139).

68471214781 is a wasteful number, since it uses less digits than its factorization.

68471214781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37355.

The product of its digits is 602112, while the sum is 49.

The spelling of 68471214781 in words is "sixty-eight billion, four hundred seventy-one million, two hundred fourteen thousand, seven hundred eighty-one".