21900231659711 has 8 divisors (see below), whose sum is σ = 22710804279600. Its totient is φ = 21093351854400.

The previous prime is 21900231659693. The next prime is 21900231659717. The reversal of 21900231659711 is 11795613200912.

It is a happy number.

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-21900231659711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21900231659717) 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, 923191565 + ... + 923215286.

It is an arithmetic number, because the mean of its divisors is an integer number (2838850534950).

Almost surely, 2^{21900231659711} is an apocalyptic number.

21900231659711 is a deficient number, since it is larger than the sum of its proper divisors (810572619889).

21900231659711 is a wasteful number, since it uses less digits than its factorization.

21900231659711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846407289.

The product of its (nonzero) digits is 204120, while the sum is 47.

The spelling of 21900231659711 in words is "twenty-one trillion, nine hundred billion, two hundred thirty-one million, six hundred fifty-nine thousand, seven hundred eleven".