21868373012711 has 8 divisors (see below), whose sum is σ = 23019760780800. Its totient is φ = 20717027321400.

The previous prime is 21868373012677. The next prime is 21868373012729. The reversal of 21868373012711 is 11721037386812.

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 21868373012711 - 2²² = 21868368818407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21868373012711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21868373015711) 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, 9449591 + ... + 11533928.

It is an arithmetic number, because the mean of its divisors is an integer number (2877470097600).

Almost surely, 2^{21868373012711} is an apocalyptic number.

21868373012711 is a deficient number, since it is larger than the sum of its proper divisors (1151387768089).

21868373012711 is a wasteful number, since it uses less digits than its factorization.

21868373012711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21038389.

The product of its (nonzero) digits is 677376, while the sum is 50.

The spelling of 21868373012711 in words is "twenty-one trillion, eight hundred sixty-eight billion, three hundred seventy-three million, twelve thousand, seven hundred eleven".