21454450151327 has 2 divisors, whose sum is σ = 21454450151328. Its totient is φ = 21454450151326.

The previous prime is 21454450151297. The next prime is 21454450151357. The reversal of 21454450151327 is 72315105445412.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (21454450151297) and next prime (21454450151357).

It is a cyclic number.

It is not a de Polignac number, because 21454450151327 - 2⁶ = 21454450151263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21454450151357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10727225075663 + 10727225075664.

It is an arithmetic number, because the mean of its divisors is an integer number (10727225075664).

Almost surely, 2^{21454450151327} is an apocalyptic number.

21454450151327 is a deficient number, since it is larger than the sum of its proper divisors (1).

21454450151327 is an equidigital number, since it uses as much as digits as its factorization.

21454450151327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672000, while the sum is 44.

Adding to 21454450151327 its reverse (72315105445412), we get a palindrome (93769555596739).

The spelling of 21454450151327 in words is "twenty-one trillion, four hundred fifty-four billion, four hundred fifty million, one hundred fifty-one thousand, three hundred twenty-seven".