68054613529 has 4 divisors (see below), whose sum is σ = 77776701184. Its totient is φ = 58332525876.

The previous prime is 68054613499. The next prime is 68054613541. The reversal of 68054613529 is 92531645086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68054613529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68054613559) 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 3 ways as a sum of consecutive naturals, for example, 4861043817 + ... + 4861043830.

It is an arithmetic number, because the mean of its divisors is an integer number (19444175296).

Almost surely, 2^68054613529 is an apocalyptic number.

It is an amenable number.

68054613529 is a deficient number, since it is larger than the sum of its proper divisors (9722087655).

68054613529 is an equidigital number, since it uses as much as digits as its factorization.

68054613529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9722087654.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 68054613529 in words is "sixty-eight billion, fifty-four million, six hundred thirteen thousand, five hundred twenty-nine".