21610381380711 has 8 divisors (see below), whose sum is σ = 28923400176000. Its totient is φ = 14352141752952.

The previous prime is 21610381380683. The next prime is 21610381380773. The reversal of 21610381380711 is 11708318301612.

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

It is not a de Polignac number, because 21610381380711 - 2⁶ = 21610381380647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21610381380011) 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, 13694790961 + ... + 13694792538.

It is an arithmetic number, because the mean of its divisors is an integer number (3615425022000).

Almost surely, 2^{21610381380711} is an apocalyptic number.

21610381380711 is a deficient number, since it is larger than the sum of its proper divisors (7313018795289).

21610381380711 is a wasteful number, since it uses less digits than its factorization.

21610381380711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27389583765.

The product of its (nonzero) digits is 48384, while the sum is 42.

The spelling of 21610381380711 in words is "twenty-one trillion, six hundred ten billion, three hundred eighty-one million, three hundred eighty thousand, seven hundred eleven".