26958961329 has 16 divisors (see below), whose sum is σ = 36404121600. Its totient is φ = 17743528016.

The previous prime is 26958961321. The next prime is 26958961333. The reversal of 26958961329 is 92316985962.

It is a cyclic number.

It is not a de Polignac number, because 26958961329 - 2³ = 26958961321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26958961321) 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, 320692 + ... + 395930.

It is an arithmetic number, because the mean of its divisors is an integer number (2275257600).

Almost surely, 2^26958961329 is an apocalyptic number.

It is an amenable number.

26958961329 is a deficient number, since it is larger than the sum of its proper divisors (9445160271).

26958961329 is a wasteful number, since it uses less digits than its factorization.

26958961329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76764.

The product of its digits is 12597120, while the sum is 60.

The spelling of 26958961329 in words is "twenty-six billion, nine hundred fifty-eight million, nine hundred sixty-one thousand, three hundred twenty-nine".