21402673183 has 2 divisors, whose sum is σ = 21402673184. Its totient is φ = 21402673182.

The previous prime is 21402673157. The next prime is 21402673211. The reversal of 21402673183 is 38137620412.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21402673183 - 2⁵ = 21402673151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21402673133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10701336591 + 10701336592.

It is an arithmetic number, because the mean of its divisors is an integer number (10701336592).

Almost surely, 2^21402673183 is an apocalyptic number.

21402673183 is a deficient number, since it is larger than the sum of its proper divisors (1).

21402673183 is an equidigital number, since it uses as much as digits as its factorization.

21402673183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 21402673183 in words is "twenty-one billion, four hundred two million, six hundred seventy-three thousand, one hundred eighty-three".