21373471576159 has 2 divisors, whose sum is σ = 21373471576160. Its totient is φ = 21373471576158.

The previous prime is 21373471576139. The next prime is 21373471576241. The reversal of 21373471576159 is 95167517437312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21373471576159 - 2¹⁹ = 21373471051871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21373471576097 and 21373471576106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21373471576139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10686735788079 + 10686735788080.

It is an arithmetic number, because the mean of its divisors is an integer number (10686735788080).

Almost surely, 2^{21373471576159} is an apocalyptic number.

21373471576159 is a deficient number, since it is larger than the sum of its proper divisors (1).

21373471576159 is an equidigital number, since it uses as much as digits as its factorization.

21373471576159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33339600, while the sum is 61.

The spelling of 21373471576159 in words is "twenty-one trillion, three hundred seventy-three billion, four hundred seventy-one million, five hundred seventy-six thousand, one hundred fifty-nine".