82320454545451 has 2 divisors, whose sum is σ = 82320454545452. Its totient is φ = 82320454545450.

The previous prime is 82320454545419. The next prime is 82320454545487. The reversal of 82320454545451 is 15454545402328.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82320454545451 - 2⁵ = 82320454545419 is a prime.

It is not a weakly prime, because it can be changed into another prime (82320454542451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41160227272725 + 41160227272726.

It is an arithmetic number, because the mean of its divisors is an integer number (41160227272726).

Almost surely, 2^{82320454545451} is an apocalyptic number.

82320454545451 is a deficient number, since it is larger than the sum of its proper divisors (1).

82320454545451 is an equidigital number, since it uses as much as digits as its factorization.

82320454545451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360000, while the sum is 52.

Adding to 82320454545451 its reverse (15454545402328), we get a palindrome (97774999947779).

The spelling of 82320454545451 in words is "eighty-two trillion, three hundred twenty billion, four hundred fifty-four million, five hundred forty-five thousand, four hundred fifty-one".