21275139335 has 8 divisors (see below), whose sum is σ = 25546004640. Its totient is φ = 17009553184.

The previous prime is 21275139323. The next prime is 21275139341. The reversal of 21275139335 is 53393157212.

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 21275139335 - 2⁶ = 21275139271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21275139292 and 21275139301.

It is a congruent number.

It is an unprimeable number.

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, 1310915 + ... + 1327044.

It is an arithmetic number, because the mean of its divisors is an integer number (3193250580).

Almost surely, 2^21275139335 is an apocalyptic number.

21275139335 is a deficient number, since it is larger than the sum of its proper divisors (4270865305).

21275139335 is a wasteful number, since it uses less digits than its factorization.

21275139335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639577.

The product of its digits is 170100, while the sum is 41.

The spelling of 21275139335 in words is "twenty-one billion, two hundred seventy-five million, one hundred thirty-nine thousand, three hundred thirty-five".