21688088483 has 4 divisors (see below), whose sum is σ = 21689730888. Its totient is φ = 21686446080.

The previous prime is 21688088381. The next prime is 21688088491. The reversal of 21688088483 is 38488088612.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21688088483 - 2¹⁰ = 21688087459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21688082483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801233 + ... + 827858.

It is an arithmetic number, because the mean of its divisors is an integer number (5422432722).

Almost surely, 2^21688088483 is an apocalyptic number.

21688088483 is a deficient number, since it is larger than the sum of its proper divisors (1642405).

21688088483 is a wasteful number, since it uses less digits than its factorization.

21688088483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642404.

The product of its (nonzero) digits is 4718592, while the sum is 56.

The spelling of 21688088483 in words is "twenty-one billion, six hundred eighty-eight million, eighty-eight thousand, four hundred eighty-three".