68521654731814 has 4 divisors (see below), whose sum is σ = 102782482097724. Its totient is φ = 34260827365906.

The previous prime is 68521654731781. The next prime is 68521654731841. The reversal of 68521654731814 is 41813745612586.

68521654731814 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17130413682952 + ... + 17130413682955.

It is an arithmetic number, because the mean of its divisors is an integer number (25695620524431).

Almost surely, 2^{68521654731814} is an apocalyptic number.

68521654731814 is a deficient number, since it is larger than the sum of its proper divisors (34260827365910).

68521654731814 is a wasteful number, since it uses less digits than its factorization.

68521654731814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34260827365909.

The product of its digits is 38707200, while the sum is 61.

The spelling of 68521654731814 in words is "sixty-eight trillion, five hundred twenty-one billion, six hundred fifty-four million, seven hundred thirty-one thousand, eight hundred fourteen".