26129161321 has 8 divisors (see below), whose sum is σ = 26254054400. Its totient is φ = 26004337632.

The previous prime is 26129161291. The next prime is 26129161349. The reversal of 26129161321 is 12316192162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26129161321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26129161391) 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, 837205 + ... + 867853.

It is an arithmetic number, because the mean of its divisors is an integer number (3281756800).

Almost surely, 2^26129161321 is an apocalyptic number.

It is an amenable number.

26129161321 is a deficient number, since it is larger than the sum of its proper divisors (124893079).

26129161321 is a wasteful number, since it uses less digits than its factorization.

26129161321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34695.

The product of its digits is 7776, while the sum is 34.

The spelling of 26129161321 in words is "twenty-six billion, one hundred twenty-nine million, one hundred sixty-one thousand, three hundred twenty-one".