29068406861 has 8 divisors (see below), whose sum is σ = 31345156920. Its totient is φ = 26797473792.

The previous prime is 29068406821. The next prime is 29068406867. The reversal of 29068406861 is 16860486092.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 707826025 + 28360580836 = 26605^2 + 168406^2 .

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 29068406861 - 2⁶ = 29068406797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29068406867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1443860 + ... + 1463853.

It is an arithmetic number, because the mean of its divisors is an integer number (3918144615).

Almost surely, 2^29068406861 is an apocalyptic number.

It is an amenable number.

29068406861 is a deficient number, since it is larger than the sum of its proper divisors (2276750059).

29068406861 is a wasteful number, since it uses less digits than its factorization.

29068406861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908495.

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 29068406861 in words is "twenty-nine billion, sixty-eight million, four hundred six thousand, eight hundred sixty-one".