21416863088419 has 2 divisors, whose sum is σ = 21416863088420. Its totient is φ = 21416863088418.

The previous prime is 21416863088407. The next prime is 21416863088429. The reversal of 21416863088419 is 91488036861412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21416863088419 - 2²⁵ = 21416829533987 is a prime.

It is a super-2 number, since 2×21416863088419² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21416863088429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10708431544209 + 10708431544210.

It is an arithmetic number, because the mean of its divisors is an integer number (10708431544210).

Almost surely, 2^{21416863088419} is an apocalyptic number.

21416863088419 is a deficient number, since it is larger than the sum of its proper divisors (1).

21416863088419 is an equidigital number, since it uses as much as digits as its factorization.

21416863088419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15925248, while the sum is 61.

The spelling of 21416863088419 in words is "twenty-one trillion, four hundred sixteen billion, eight hundred sixty-three million, eighty-eight thousand, four hundred nineteen".