21882546067 has 2 divisors, whose sum is σ = 21882546068. Its totient is φ = 21882546066.

The previous prime is 21882546029. The next prime is 21882546079. The reversal of 21882546067 is 76064528812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21882546067 - 2³¹ = 19735062419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21882546067.

It is not a weakly prime, because it can be changed into another prime (21882549067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10941273033 + 10941273034.

It is an arithmetic number, because the mean of its divisors is an integer number (10941273034).

Almost surely, 2^21882546067 is an apocalyptic number.

21882546067 is a deficient number, since it is larger than the sum of its proper divisors (1).

21882546067 is an equidigital number, since it uses as much as digits as its factorization.

21882546067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 21882546067 in words is "twenty-one billion, eight hundred eighty-two million, five hundred forty-six thousand, sixty-seven".