26121405351 has 8 divisors (see below), whose sum is σ = 34829399920. Its totient is φ = 17413840512.

The previous prime is 26121405347. The next prime is 26121405353. The reversal of 26121405351 is 15350412162.

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

It is not a de Polignac number, because 26121405351 - 2² = 26121405347 is a prime.

It is a super-2 number, since 2×26121405351² (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 (26121405353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82245 + ... + 242913.

It is an arithmetic number, because the mean of its divisors is an integer number (4353674990).

Almost surely, 2^26121405351 is an apocalyptic number.

26121405351 is a deficient number, since it is larger than the sum of its proper divisors (8707994569).

26121405351 is a wasteful number, since it uses less digits than its factorization.

26121405351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214865.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 26121405351 in words is "twenty-six billion, one hundred twenty-one million, four hundred five thousand, three hundred fifty-one".