21914129283 has 4 divisors (see below), whose sum is σ = 29218839048. Its totient is φ = 14609419520.

The previous prime is 21914129227. The next prime is 21914129291. The reversal of 21914129283 is 38292141912.

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 21914129283 - 2¹² = 21914125187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21914129203) 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, 3652354878 + ... + 3652354883.

It is an arithmetic number, because the mean of its divisors is an integer number (7304709762).

Almost surely, 2^21914129283 is an apocalyptic number.

21914129283 is a deficient number, since it is larger than the sum of its proper divisors (7304709765).

21914129283 is an equidigital number, since it uses as much as digits as its factorization.

21914129283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7304709764.

The product of its digits is 62208, while the sum is 42.

The spelling of 21914129283 in words is "twenty-one billion, nine hundred fourteen million, one hundred twenty-nine thousand, two hundred eighty-three".