82417811968451 has 2 divisors, whose sum is σ = 82417811968452. Its totient is φ = 82417811968450.

The previous prime is 82417811968439. The next prime is 82417811968489. The reversal of 82417811968451 is 15486911871428.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82417811968451 is a prime.

It is not a weakly prime, because it can be changed into another prime (82417811968421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41208905984225 + 41208905984226.

It is an arithmetic number, because the mean of its divisors is an integer number (41208905984226).

Almost surely, 2^{82417811968451} is an apocalyptic number.

82417811968451 is a deficient number, since it is larger than the sum of its proper divisors (1).

82417811968451 is an equidigital number, since it uses as much as digits as its factorization.

82417811968451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30965760, while the sum is 65.

The spelling of 82417811968451 in words is "eighty-two trillion, four hundred seventeen billion, eight hundred eleven million, nine hundred sixty-eight thousand, four hundred fifty-one".