21332096423887 has 2 divisors, whose sum is σ = 21332096423888. Its totient is φ = 21332096423886.

The previous prime is 21332096423863. The next prime is 21332096423929. The reversal of 21332096423887 is 78832469023312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21332096423887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21332096493887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666048211943 + 10666048211944.

It is an arithmetic number, because the mean of its divisors is an integer number (10666048211944).

Almost surely, 2^{21332096423887} is an apocalyptic number.

21332096423887 is a deficient number, since it is larger than the sum of its proper divisors (1).

21332096423887 is an equidigital number, since it uses as much as digits as its factorization.

21332096423887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20901888, while the sum is 58.

The spelling of 21332096423887 in words is "twenty-one trillion, three hundred thirty-two billion, ninety-six million, four hundred twenty-three thousand, eight hundred eighty-seven".