68716839829 has 16 divisors (see below), whose sum is σ = 78611123520. Its totient is φ = 59489458560.

The previous prime is 68716839823. The next prime is 68716839923. The reversal of 68716839829 is 92893861786.

It is not a de Polignac number, because 68716839829 - 2⁷ = 68716839701 is a prime.

It is a super-3 number, since 3×68716839829³ (a number of 33 digits) contains 333 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 (68716839823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1452147 + ... + 1498720.

It is an arithmetic number, because the mean of its divisors is an integer number (4913195220).

Almost surely, 2^68716839829 is an apocalyptic number.

It is an amenable number.

68716839829 is a deficient number, since it is larger than the sum of its proper divisors (9894283691).

68716839829 is a wasteful number, since it uses less digits than its factorization.

68716839829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950980.

The product of its digits is 62705664, while the sum is 67.

The spelling of 68716839829 in words is "sixty-eight billion, seven hundred sixteen million, eight hundred thirty-nine thousand, eight hundred twenty-nine".