82317447620951 has 2 divisors, whose sum is σ = 82317447620952. Its totient is φ = 82317447620950.

The previous prime is 82317447620879. The next prime is 82317447620959. The reversal of 82317447620951 is 15902674471328.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82317447620951 is a prime.

It is a super-2 number, since 2×82317447620951² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82317447620959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41158723810475 + 41158723810476.

It is an arithmetic number, because the mean of its divisors is an integer number (41158723810476).

It is a 1-persistent number, because it is pandigital, but 2⋅82317447620951 = 164634895241902 is not.

Almost surely, 2^{82317447620951} is an apocalyptic number.

82317447620951 is a deficient number, since it is larger than the sum of its proper divisors (1).

82317447620951 is an equidigital number, since it uses as much as digits as its factorization.

82317447620951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 82317447620951 in words is "eighty-two trillion, three hundred seventeen billion, four hundred forty-seven million, six hundred twenty thousand, nine hundred fifty-one".