68834925629 has 4 divisors (see below), whose sum is σ = 68933121660. Its totient is φ = 68736729600.

The previous prime is 68834925623. The next prime is 68834925697. The reversal of 68834925629 is 92652943886.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92652943886 = 2 ⋅46326471943.

It can be written as a sum of positive squares in 2 ways, for example, as 37209638404 + 31625287225 = 192898^2 + 177835^2 .

It is a cyclic number.

It is not a de Polignac number, because 68834925629 - 2⁴ = 68834925613 is a prime.

It is a super-2 number, since 2×68834925629² (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 (68834925623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49096964 + ... + 49098365.

It is an arithmetic number, because the mean of its divisors is an integer number (17233280415).

Almost surely, 2^68834925629 is an apocalyptic number.

It is an amenable number.

68834925629 is a deficient number, since it is larger than the sum of its proper divisors (98196031).

68834925629 is an equidigital number, since it uses as much as digits as its factorization.

68834925629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98196030.

The product of its digits is 44789760, while the sum is 62.

The spelling of 68834925629 in words is "sixty-eight billion, eight hundred thirty-four million, nine hundred twenty-five thousand, six hundred twenty-nine".