29108078361 has 12 divisors (see below), whose sum is σ = 42312806692. Its totient is φ = 19281783456.

The previous prime is 29108078359. The next prime is 29108078383. The reversal of 29108078361 is 16387080192.

It can be written as a sum of positive squares in 2 ways, for example, as 18115814025 + 10992264336 = 134595^2 + 104844^2 .

It is not a de Polignac number, because 29108078361 - 2¹ = 29108078359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29108078341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10298686 + ... + 10301511.

Almost surely, 2^29108078361 is an apocalyptic number.

It is an amenable number.

29108078361 is a deficient number, since it is larger than the sum of its proper divisors (13204728331).

29108078361 is a wasteful number, since it uses less digits than its factorization.

29108078361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20600360 (or 20600357 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 29108078361 in words is "twenty-nine billion, one hundred eight million, seventy-eight thousand, three hundred sixty-one".