21241806935 has 8 divisors (see below), whose sum is σ = 26989590096. Its totient is φ = 15993831040.

The previous prime is 21241806913. The next prime is 21241806947. The reversal of 21241806935 is 53960814212.

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

It is not a de Polignac number, because 21241806935 - 2²⁶ = 21174698071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21241806892 and 21241806901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124951721 + ... + 124951890.

It is an arithmetic number, because the mean of its divisors is an integer number (3373698762).

Almost surely, 2^21241806935 is an apocalyptic number.

21241806935 is a deficient number, since it is larger than the sum of its proper divisors (5747783161).

21241806935 is a wasteful number, since it uses less digits than its factorization.

21241806935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249903633.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 21241806935 in words is "twenty-one billion, two hundred forty-one million, eight hundred six thousand, nine hundred thirty-five".