21467799999983 has 2 divisors, whose sum is σ = 21467799999984. Its totient is φ = 21467799999982.

The previous prime is 21467799999973. The next prime is 21467800000037. The reversal of 21467799999983 is 38999999776412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21467799999983 - 2⁴ = 21467799999967 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 21467799999892 and 21467799999901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21467799999953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10733899999991 + 10733899999992.

It is an arithmetic number, because the mean of its divisors is an integer number (10733899999992).

Almost surely, 2^{21467799999983} is an apocalyptic number.

21467799999983 is a deficient number, since it is larger than the sum of its proper divisors (1).

21467799999983 is an equidigital number, since it uses as much as digits as its factorization.

21467799999983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29998781568, while the sum is 92.

The spelling of 21467799999983 in words is "twenty-one trillion, four hundred sixty-seven billion, seven hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred eighty-three".