21985710589283 has 8 divisors (see below), whose sum is σ = 25137839564640. Its totient is φ = 18836409908160.

The previous prime is 21985710589273. The next prime is 21985710589289. The reversal of 21985710589283 is 38298501758912.

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 21985710589283 - 2³² = 21981415621987 is a prime.

It is a super-2 number, since 2×21985710589283² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21985710589289) 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, 707056898 + ... + 707087991.

It is an arithmetic number, because the mean of its divisors is an integer number (3142229945580).

Almost surely, 2^{21985710589283} is an apocalyptic number.

21985710589283 is a deficient number, since it is larger than the sum of its proper divisors (3152128975357).

21985710589283 is a wasteful number, since it uses less digits than its factorization.

21985710589283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414147117.

The product of its (nonzero) digits is 87091200, while the sum is 68.

The spelling of 21985710589283 in words is "twenty-one trillion, nine hundred eighty-five billion, seven hundred ten million, five hundred eighty-nine thousand, two hundred eighty-three".